Thanks for this video. I now have the external breather installed in my bike. I chose the filter. I drilled the holes and installed the brass hose connectors into my SE Chisel air cleaner. I routed the hose up over the throttle body, under the tank, and over to the plastic shelf behind the right side cover. The filter sits in a small rubber made bowl. After a few hundred miles, I inspected it and logged some more miles after adding some sea foam to the tank and spraying some B-12 throttle body and carb cleaner into the throttle body. It's very gratifying to find the air filter dry as bone without any oil contamination. I checked the Breather Filter again and it was wet with a bit of oil in the bowl. A quick clean up and she is good to go again. I may end up getting the catch can but it all depends on how well the filter set up works. So far I'm a happy Harley Rider. Thanks again
I’ve got the breather filter installed on my 03 Heritage Softail and it runs amazing with the fresh air,no more garbage being blown back into the throttle body,simple to do
I ride a 2018 Road King standard with the 107 M8. She has a stage 2 with a Fueling 465 cam, Bassani Road Rage exhaust and an Arlen Ness Big Sucker air intake. She’s a spitter! I suspected she was, so when I installed a DK external breather system half way through the summer, I installed it with 2 cans, hanging a can off of each cylinder out in the open just behind and below the air filter. They are out in the open easy to get at. I have to empty them every 600-800 miles. But I don’t mind because servicing the cans is a simple process. The crap that comes out of these is just amazing and I’m glad I’m not running it through the bike anymore. Why is she a spitter?......From an earlier video, I knew not to overfill the oil and I always run at or below the half way mark on the dipstick. I suspect the oil pump. She has an OEM pump that’s 1st or 2nd generation for the M8s. Harley is now on generation 4. To me, it’s just not worth it to put in a new pump because she’s never had a wet sumping issue where I’ve had a loss of power. In summary, I really like and recommend this product. Whether you buy the can or the filter depends on your installation. Mine’s right out in the open and the can looks good. If I did more of a hidden installation I probably consider the filter.
Yes, I would suspect the oil pump is the source of all that oil carry-over also...it sounds like it is not doing a good job of scavenging. Really great to hear that the Catch-Cans are keeping it under control for you. We appreciate your business. 👍
@@glencross4461 Yes, a vented dip stick will reduce the amount of oil in his EBS catch cans. Some of it will now be in the vented dip stick catch can, or along the bike if he uses a filter. But it does not solve the problem of reducing the spitting, it just re-routes it.
@Glen Cross Happy New Year! Yeah, a vented dip stick re-routes Some of the hot, oily, oxygen depleted air, but not all of it. There is still performance robbing crap going into the intake, just not as much.
i have the Catch-Can on my 01Road King. On the bike for around 700 miles so far so good not much in the can yet just a lil oily but the carb is staying clean and its not going in my engine. just FYI when new the fins on my Catch-Can were very sharp and easily cut my hand when I tried to open it the first time. And it just looks awesome...
Both, kind of... On my 98 Softail I run the breather bolt hoses to each end of a tee and from the middle leg I run that hose to another tee orientated so the side leg getting the hose from the breather nuts is horizontal. The inline ones on each end are now vertical, I run the bottom hose down to the bottom of the bike with a plug in it. The other end pointing up goes to a little filter. The bottom leg acts as a "catch can" and allows the air to go up and out the filter. My 91 FL is bottom breather EVO, that one I put a small actual catch can with a filter off that. She is getting older and the check valve in the pump will let about a tablespoon get by after a couple weeks. The can catches it all nice and neat, do not have that problem with the 98. The 74 ironhead is a whole different story...
Running your filter set up hanging under my AC, while I like the concept it does throw alot if gunk down the side of my '09 UC. Thinking of ordering a catch can or just getting a 'T' & more hose & placing it under the frame.
Some of the older Twin Cam's do spit more than other bikes. You can check your oil level to make sure that you do not have too much oil in the bike, that can cause excessive spitting as well. The catch can does a much better job containing the oil if you have a bike that spits a lot, or you can do like you said and route it under frame. Feel free to contact us for any help that you might won't or need; Support@DKCustomProducts.com 662-252-8828 Thanks for commenting!
I'm in favor of venting my trans top plate (DIY) , adding a check or pvc valve and a catch can to relieve the pressure/oil mist heading into the intake.
Yes, the dipstick or trans cover vent is a popular internet phenomena right now. We've seen no testing to validate the vacuum theory. We are going to be doing some testing soon. I don't believe you will damage your bike by doing it, but if you vent the head breathers in addition, you will be keeping the bike in better condition. Thanks for your comment. 👍
Back in the 70s used to run vent over to the drive chain, right where it came out of tranny. Dripped on the chain keep it lubed, relieving C.P. in the process.
Helpful video, ive got a small 105cc big bored cub *yamaha townmate* and because the crankcase is still small 50cc at prolonged high revs it just pukes out oil everywhere all over the center stand so i ordered a oil cap with a breather hole to add a second pressure releif point so if that dont fix it the oil catch can it is.. 🙏
hey fellas i just ordered a breather system for my 2014 low rider. i decided on the filter instead of the catch can. my question is if the filter starts to fill up with oil, will the oil come out eventually through the filter? or just build up in the filter? i prefer it just come out instead of building up in there. thank you for the great products. i had ordered a catch can for more road glide and loved it by the way.
How the oil builds up depends on a few things- 1. How much does your bike spit (every bike is different) 2. How long do you ride 3. How far away is the filter from the intake The further it is away from the intake the faster it will build up. The closer it is, and the longer rides you take will have enough hot air reaching the filter element that it will vaporize and not build up as quickly. Glad you are enjoying the parts, and we appreciate your business. 👍
My old man had one of these fords, I believe it was a 96. He let me and my brother drive it to school and I remember when we shut it off it would try restarting back up and act as if it was starving for fuel. Haven’t done no digging into it as it’s been sitting for years now. I’ll eventually be back wrenching it.
Thanks for the video. I just ordered a breather system from you guys and I am looking forward to installing it. My bike is a 2019 Street Glide Special. I ordered some extra black hose clamps to aide in keeping my blacked out theme. Great videos and I am a new subscriber. Keep the awesome videos coming. P.S. I went with a catch-can.
Glad you are digging the videos. Thank you for your business, we appreciate it. I believe you will be well pleased with the Catch-Can EBS. Thanks for the Sub.
I had a 4 cylinder Suzuki with just a hose. My wife always complained that after a ride I smelled like gas or oil. I made a catch can, and that issue went away.
I got 09 sportster 1200 custom i drilled 2 holes thru the air filter plate put 2 hoses to the vents thru the holes i drilled put a 3/8 TEE barley see my catch filter so far not one drip of oil mines right under the air filter
First I just want to say you guys are the best when it comes to custom builds, more experience and knowledge than anyone else IMO and you share that with the world. My question is what are your opinions on running the hose near the chain? Would you suggest using a filter if my goal is to lubricate the chain?
I would be hesitant to use the blow-by to "oil" the chain. Depending on what bike you have it may spit enough oil or not. Then it is a matter of what it is spitting, some of it can be a really gummy mess. Take a look at the two linked photos below to see what typically comes out. Also, most chains now days are sealed, and what little lubrication they need is specialized for the rubber seals. www.dkcustomproducts.com/media/wysiwyg/Catch-Can_Glop_1.jpg www.dkcustomproducts.com/media/wysiwyg/black_oil_from_catch_can.jpg
@@DKCustomProducts makes sense but how about if I’m running the filter over the chain? As long as it’s cleaned during services I don’t see how the little bit of dirt on the filter would be much different than the normal dirt and debris the chain picks up from operation
@@exzackt No, getting dirt on the filter is not an issue. It will breathe as much as it needs to, although it should be cleaned periodically (depending on conditions, every 5000 miles or so. Here is a video on how easy it is to clean. th-cam.com/video/be3R3KSmc4c/w-d-xo.html
@@DKCustomProducts ok thanks. Are you saying if I run the external filter over the chain, the filter will work to clean the blow-by of any of the nastiness that might be coming out of the blow-by? Would be a trick setup to put that wasted oil to good use
@@exzackt Yes, the filter would clean up a bit of the nastiness, but it might clean it up so much that not much oil would end up on the chain at all. If your bike is a pretty significant spitter, and it is mostly oil (not much water), then you might want to run just the hose if you want to use that oil on your chain.
i used a filter like the one in the video, no more hot dirty oil getting sucked into the TB and making carbon on the pistons and valves, my 16 RK runs better, also true duels, breeeeth much better.
Two questions: What happens if the catch can fills and doesn't get emptied? Is their "noticeable/measurable" power change after installing either the catch can or filter?
Great questions, thanks for asking. 1. If the can fills up (rare) then oil will start seeping out the vent holes on the top. It will continue functioning as it should. 2. Most folks do notice an increase in power. (but not everyone...I believe it depends on how you ride and how well you know your bike) It is measurable, you can see the dyno chart linked below. Here are a couple of comments from Customers. "Ordered the breather system for my wife's Twin Cam Freewheeler and my Heritage Classic 114 Milwaukee 8. Easy installation instructions and high quality components. The performance on both bikes have improved and they are running cooler in the warm FL WX. Highly recommend you install the breather system(s) on your Harley. You will not regret it! Thank you! (Posted on 5/17/2021)" "The first thing I noticed was my engine was running cooler! Maybe I’m just imagining things, but I seem to have more power." "Install was easy, all parts needed were there. I noticed a little more get up and go when I hit the throttle, even the ol'lady noticed it. I ordered the braided line with it, looks great. Thanks DK. (Posted on 3/1/2021)" Link to Dyno- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breathertest_1_9.jpg
We do have some Customers that have done that. Water is a non-issue, the chains are exposed to rain and puddles. It is a function of how much oil a particular bike expels thru the breather bolts and a function of the environment.
That does not seem right...but who knows what the postal services are doing right now during the pandemic. BUT, if you will write Support@DKCustomProducts.com with what you want, and your address, they can check and see if there is a better price than that...hopefully it is a lot lower than that.
@@damienfrigo4734 Yeah, shipping costs from the carriers just keeps climbing. Write Support@DKCustomProducts.com to see if there is anything less expensive. The other thing is that usually a larger package is not that much more expensive than a small one. Getting multiple parts at a time for yourself (or a group buy) will lower the cost of shipping per item quite a bit.
That's great! I'm betting your engine likes that. Appreciate your business. 👍 Have you seen the little vid we made on cleaning the filter? th-cam.com/video/be3R3KSmc4c/w-d-xo.html
Thanks for your time guys, I appreciate your help and your products. On my 06 Flhpi with a tc88 , how do you add an external breather with a big sucker air cleaner? The backing plate has two slots for the factory breather hoses that sit under the air filter, when relocating the breather hoses from the factory breather bolts to the y connector it leaves the two channels empty to let un filtered air in to the throttle body. Basically it looks like I need to use some type of filler to close them off or is there a different backing plate that doesn't have the gaps ? I appreciate any help you can give? I have a 06 RK flhpi TC88 w/ Delphi injection I have the basic A. N. Big sucker kit . Am using factory breather bolts with the nipple on them and 1/4 hose routed behind the plate and over the frame. Haven't finished the install yet and haven't heard back from A. N. About it. Probably because they don't think you need an external breather with they're A.C. setup?
Most folks use high heat RTV or silicone to plug those holes. We have a step by step with photos of it in the "technical info" tab at this link- www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm Some folks use set screws, as seen in this video- th-cam.com/video/uAmPC_kglJk/w-d-xo.html The other option is to get a different backplate, that will allow you to use the filter element and cover that you already have. You can see that at this link- www.dkcustomproducts.com/naked-hiflow-606-air-cleaner-back-plate-dyna-softail-touring-rushmore-w-no-filter-element.htm
mount your filters above your source and this will minimize the oil output. the vapor will escape as wanted and the majority of oil will run back down hose. the engine intake breather i just vent to the ground below frame with open hose. but i have very little blow-by. some of these aftermarket parts companys are making big $$$ on manufacturing venting parts, aka dipsticks and tranny plates. it's way easier than that. do your research. lots of info out there.
Great question. Venting the dipstick only stops some of the hot oily oxygen depleted air from going into your combustion chambers...Not all of it. The External Breather System stops ALL that crap from going in. A vented dipstick is trying to relieve the same crankcase pressure as the EBS, so no need to do both. There is one exception...if you have a weak oil pump that is not scavenging well, or have a very high compression ratio resulting in excessive CCP, then doing both can reduce the possibility of sumping.
I used some braided hose and try to route it behind the exhaust to the catch can. Bad idea the hose touch the exhaust and the braids burned and left a burn mark on the exhaust. Lesson learned they are not head tolerant enough to touch the exhaust directly.
@@DKCustomProducts Can you recommand a location to mount the oil catch can? I own a 2020 RGS and I just can't find a good location to properly mount it to and can have the hose connect to it. Thank you.
@@georgezhou1415 There are a lot of choices. I will share where I have mounted mine, but it is by no means exhaustive. 1. Below the air cleaner (sometimes there is enough room, sometimes not. 2. Below the rider floorboard on the right hand side. 3. On the left side behind the cowbell horn. 4. On the left side swingarm. There are some photos showing some location ideas at the following two links- www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley.htm#!prettyPhoto www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2174.htm
While it will reduce the hot, oily, oxygen depleted air going into the cylinders, it does not eliminate it. So, why spend more money to do half the job?
When you spray the filter element with S100 or Dawn soap or Simple Green, or similar oil cutting cleanser, then let it sit for a few minutes, you can then spray it off and it will be clean, like new, INSIDE and Out. No build up.
Thanks for the video. I just ordered a breather set from you guys and am looking forward to installing it. My bike is a 2013 Fatboy with about 13k km (so, only about 8k miles). I’m wondering if any carbon that may have built up might eventually burn off, or do you think I need to consider mechanical or chemical solutions? I don’t have any noticeable tuning issues at the moment.
Glad you're liking the videos, and we appreciate your business. It will burn off. Periodic higher rpm runs (once fully warmed up) will help it burn off more quickly. I do not use chemical solutions. They can be effective, and 99.5% of the time there is no problem with them...but that little chance that a big piece will break off and damage a valve or valve stem...that is not worth it to me.
I have an Arlen Ness big sucker that has the hoses going back into the air cleaner I don’t wish to change out the air cleaner all I want to do is redirect the oil into a catch can beneath the air cleaner what is your recommendations? My Arlen Ness big sucker is the large filter using the stock pier cleaner Cover.
Pull those hoses out of the back of the air cleaner, plug the holes in the back of the air cleaner. Route those hoses to a t-fitting and then to a filter or a catch-can. Feel free to text or email us some photos of your set up and we can direct you to what parts will get that done for you. 662-420-4891 or Support@DKCustomProducts.com
@@DKCustomProducts For a 2019 Road King FLHR M8 107. How much for the Barrel-One? Not the K&N one. Dwyane sold me the Relocation oil-filter kit. Comes tomorrow. Looking forward to a VERTICAL filter😎. Tank's
I have 08vtx1300c trying to create a vent port on rear cylinder covers are similar front ventilation port and rear stud which is solid aluminum is it agood thing to vent the rear cylinder similar to a harly motor from colorado Kevin Hill
There are dozens of companies that make External Breather Systems for cars and trucks. We do not. But it is a good idea. Do a google search for your particular auto/year and you should see many options. Sometimes they are called crankcase breathers for auto's, so you might want to search with those key words also.
In the automotive world (I'm a mechanic, but also a biker) we call it the Positive Crankcase Ventilation system (PCV for short) and generally on cars and trucks, any oil vapor coming thru the PCV is extremely minimal. It maybe amounts to a teaspoon every 10,000 miles. That said, I've personally installed a catch can on my Dodge Challenger. I digress. The PCV system that dumps back into the intake is required by law, as per the shitty EPA, to be a part of all vehicles produced now. Something worth noting is that crankcase ventilation is a vital part of ALL 4 stroke engines, but in the past, it used to vent to atmosphere instead of back into your intake. I've personally never known the issue too be as significant as it is on Harleys. To me, there's clearly a design flaw somewhere. There should not be that much oil coming out of the breather as it does on Harleys, M8's in particular and Twin Cams to a lesser extent.
I'm also a mechanic (jet fighters, Bronco turboprops, cars, trucks, bikes and anything else that holds still long enough to workon) since the 1970s and have seen MANY automotive intake manifold PCV passages CLOGGED by baked on oil. HD crankcase pressures due to the common crankpin tend to be high but those problems were solved before WWII with road draft tubes on nearly every piston engine until the PCV valve era in the 1960s. A catch can and NO PCV connections to the intake is the wise move for cars for owners who don't just run a road draft tube or don't want to sort out vaccuum hoses which can be more hassle than just interposing a catch can.
thanks for your video. you both do a good job. do you have a video on how & where to hook up the hoses and what all i need. i have a 2002 softail. thanks much for any help
We have quite a few resources on that. Sort of depends on what kind of EBS you are using with your CC or Filter, but here are a few- th-cam.com/video/5tTkzGol2G4/w-d-xo.html th-cam.com/video/P5kqcm0Lx1o/w-d-xo.html If you're installing with a stock air cleaner, look at the Technical Tab at this link- www.dkcustomproducts.com/twin-cam-discrete-head-breather-system-touring-softail-dyna-dk-tc-brt.htm Feel free to call or email Dwayne with any question unique to your set up. Support@DKCustomProducts.com or 662-420-4891
Mine either. It used to. I have a custom setup of jegs tubing. It looks sick with red and blue fittings and chrome angled piping. I get nothing anymore though...?
Don't know if a video of that will be in the works. We do not run HD Heavy Breathers, we run Outlaw 636V's, they are a forward facing design, but with a venturi component that makes them perform better than the HD HB's. However, if you click on the "Technical Info" button at the link below there is a pictorial of a step-by-step on how to do what you ask. www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm Also, at the following link there is a bit more detail with some words, in addition to the photos. www.dkcustomproducts.com/acl/diy-external-breather-system.htm
Not sure which photo you are referring to. However, both on the Twin Cam and M8, a popular placement is below the air cleaner above the timing cover, like in the link below. It is attached to the hose, nothing else. At first we thought it might move and bump into the pushrod tubes, but it doesn't. Hose is pretty short and stiff enough to keep it in place. If there is a different placement that you are asking about, let me know. www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/z/a/zammy_606_spoke_cc_ebs_3.jpg
I have a 22 LRS with a S & S stealth a/c. Shes a spitter. What product number should i use? I think i want to use a filter over catch can. I see a few thinks on your site....
Thanks for looking at our parts. The one at the following link will work. Also, feel free to email or call with any questions. Support@DKCustomProducts.com 662-252-8828 www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm
Very cool. We played around with modifying some fuel filters. Still have a couple sitting on the shelf. Is yours clear...I like the idea of seeing inside it thru the clear housing. How are you venting it?
@@DKCustomProducts No it's not clear. It was a one I had left laying around from a chopper build. I just connected on the end underneath the bike. Left the end open, so it goes through the sponge and out the other end.
Yes, we have had the Outlaw Breather Bolts available for over 10 years now (LBC & TCB complimented us by copying the idea). They work well on 99% of Sportsters, about 50% of Twin Cams, and about 80% of M8's. The filter in them is really small, so on a bike that is a spitter (has a lot of oil carry-over) they can overwhelm those small filters and get oil along the side of the bike. Good to hear you don't have a spitter. 👍 More info on them at these two links- www.dkcustomproducts.com/external-breather-system-breather-bolts-336.htm AND www.dkcustomproducts.com/external-breather-system-breather-bolts-328.htm
I have a 2014 Road King CVO after watching this video, I removed my Screaming Eagle air cleaner. It was full of oil. After looking closely at the engine breather bolts I'm not sure how it can be modified. The back plane has angled holes that lead to black spacer around my bolts to the heads. Can I replace my mounting hardware or drill a hole into them from the bottom and attach a hose, then tap and plug the back plane holes? Is there a kit for the CVO Screaming Eagle air cleaner?
Here are the different kits that will work with your ride- www.dkcustomproducts.com/diy-external-breather-systems-516.htm Feel free to call or email with any questions. Support@DKCustomProducts.com 662-252-8828
I got lucky and bought an 02 DYNA WIDE GLIDE W only 8k. On the clock. 88ci.Dyna. replaced the 16 " front wheel (still have a beautiful 16" for sale) with the stock 21". No leaks but for the u shaped hose atop the primary. The wind pushes up oil to the clutch cable adjuster. Minor deal but I hate parking at my bros house and finding drops. After bragging my bike doesn't Leak! How embarrassing. Only after a long hard ride. Any ideas guys? It's an 02 88ci.Dyna.
Give Dwayne a call or email at the info below. Would not hurt to give him a photo also so he knows exactly what you mean by a U shape hose atop the primary. Support@DKCustomProducts.com or 662-252-8828
@@DKCustomProducts it's a small about a bit smaller than a #2 pencil od . on top of the primary say 5" long the u bends at the rear the open end points to the front. Made of black rubber. I was told by a mechanic it picked up wind pushing oil forward. In my case the clean oil went up the clutch cable an d seeped out the cable adjuster ebook midway up the frame downtubes. The ONLY leak on the whole bike! Made sense. I cut 1/2 of the curve at a slant. Then what would be better is a bit of screen shaped then a tiny hose clamp since its there for a small bit of breathing/balance. Better would be after adjusting the cable, (get this) and cleaning the adjustment/cable shaft sealing it with Black Gorilla tape (it comes in duct tape type rolls so strong it's exceedingly hard to even get it Off the roll!! Apply carefully and tight. Use a couple of wide black zip ties. Now when you park the oil naturally drains down! If you use the 2nd method no oil loss. You STILL get that tiny balance/ breathing. All my 63 yrs. Can come up with now. Even H.D.Engineers aren't perfect I.e.. The cam chain tensioner on some TWIN Cams like my 02. Lucky THAT part hasn't grenaded at 11000. Mi. Hope this long winded mess helps. G. K.
Here is my deal on my 21 street bob 114. I bought an aftermarket breather off of eBay. It is one that has the glass see through cover. There is no external breather. Instead the kit just caps it off completely. Is that bad? I did notice after only 10 miles of riding. The glass was covered in moisture. Water. Is it good to have the system blocked off like that?
The air cleaner may look like it is capped off at the breathers. It is Not. It is feeding that hot, oily, oxygen depleted air into the air cleaner, and part of that is what you are seeing on the see through cover. This is a very useful video on the subject to watch- th-cam.com/video/EfDeFZblMck/w-d-xo.html Just so you know, if it were blocked off you would have oil leaking out of various gaskets on the engine. For the longevity of your engine it will definitely last longer if you are externally venting to allow all that hot, oily, oxygen depleted air out of the bike, rather than trapping it in and causing more carbon build up. We have a variety of External Breather Systems that you can see at this link- www.dkcustomproducts.com/all-twin-cam-engines-c76-323.htm If you are not sure which one will fit your air cleaner, please feel free to email or call: Support@DKCustomProducts.com 662-252-8828 Thanks for commenting! 😎 MB
It does not cause any problem. I suppose if it was caked with dried mud it could plug up enough to be a problem. I've run mine for well over 10K miles without cleaning and it has never plugged up enough to be an issue. You may like a look at these videos- th-cam.com/video/Kio4DEuOpCU/w-d-xo.html th-cam.com/video/be3R3KSmc4c/w-d-xo.html
I purchased a filter and placed it above the air cleaner. My only complaint is that I smell the oil now. I'm thinking about removing and replacing it with a can.
For Gearheads....the sweet smell of oil, gas and burning rubber! 😃 If you want to get that smell away from you, there are many places you can locate the filter element. Look at this photo for one idea- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breather1_1.jpg
I have a 08 Electra Glide Classic. I really want a catch can mount indiscreetly. Do you have a Air filter External breather system I can use the Stock air filter cover with ? Would that have negative results?
Here is a link to a catch-can EBS that works with your OEM air cleaner and cover- www.dkcustomproducts.com/external-breather-system-w-catch-can-harley-twin-cam-dk-tc-brt-cc.htm No negative results, the positive results are you are no longer feeding that hot, oily, oxygen depleted air into the combustion chambers. Here is a video you may find interesting/useful- th-cam.com/video/EfDeFZblMck/w-d-xo.html You can also get a true performance air cleaner that you can run your stock cover with. I have done this with a few of my bikes. Here is a link to it. Simply put your stock football cover over this one and it works great- www.dkcustomproducts.com/complete-hiflow-587-air-cleaner-sano-black-for-harley-twin-cam-dk-ac587-blk-tc.htm Here is a photo of it on a Softail (works the same on your EG)- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breathersoftail6d.jpg
Your Crankcase ventilation system only produces positive pressure. Additionally there are breather valves in the heads just beyond the breather bolts. Think of those valves as a check valve that would make it virtually impossible for any liquid, including rain water, to compromise the crank case or engine oil.
Yes, all engine produce crankcase pressure, which results in hot, oily, oxygen depleted air going into the combustion chambers. This results in less power, and carbon buildup in the throttle body sensors and pistons. The newer oil pump was to fix the sumping issue, but it does not eliminate blow-by which is the power robber. Every bike has different levels of oil contained in the blow-by, and an oil pump can have some effect of making more or less oil being suspended in the blow-by. Here is a video with more information on this subject- th-cam.com/video/tJXGEwLCNDw/w-d-xo.html
Vented dipsticks and transmission cover vents do NOT take the place of external breather systems. There is still hot, oily, oxygen depleted air being fed into the intake. The folks that sell vented dipsticks and trans cover vents, have it right in their product description that they do not prevent all that crap from going into your intake. Here is a copy and paste from the Trask website- "This will reduce the oil exiting from the head breathers..." Even if there is no trace of oil in the intake, there is still hot, oxygen depleted air going into the combustion chambers, making the engine run hotter, and not as strong because of the lower oxygen content. IF you have an older M8, with the older oil pump and you are concerned about sumping...OR, IF you have a built engine with higher compression, then it may be beneficial to do an EBS And a vented dipstick or trans cover vent.
If you are having a lot of excess oil carry over you may want to check the oil level in your bike. When you check the oil cold the level should be between the add a quart line and the full line. If it is at the full line when checking it cold you have too much oil in your bike. Here is a video on that subject - th-cam.com/video/anShki_WeL0/w-d-xo.html If you want to know if you are sumping here is a video that can help you determine if you are sumping - th-cam.com/video/94wXPj8ydMw/w-d-xo.html If you are not sumping then you may want to do a leak down test. Here is a video that explains how to do a leak down test - th-cam.com/video/gojpttZQjKk/w-d-xo.html Here is a video on a compression test that you may find interesting - th-cam.com/video/uIDxZdRB1kA/w-d-xo.html I hope you get to the bottom of your problem. Please feel free to contact us with any questions; Support@DKCustomProducts.com 662-252-8828 Thank you for commenting! 😎 MB
Hi DK, I have a 2019 Street Glide with the SE 128ci stage 4 kit installed. They installed the new HD oil pump and since then, the bike burns oil (can smell it from time to time) and the filter/intake has oil inside. Even the spark plugs are dirty. She runs hot 🔥 320 to 340°F. Had to refill oil twice now in less than 2000 miles. I have the Trask Checkmate installed. I will install the Feuling oil pump and cam plate as soon as Michigan warms up a little, if the runout is good. Do you think, that a EBS will help with my issue? Or do you have an idea 💡 what could cause such an issue? Thank you in advance!!!
There are two things that I would look at. 1. They may have made a mistake in the installation of the Stage IV kit...we seen that happen. Have them do a Leak-Down test as a first step to tracking down the problem. 2. Whether it passes or fails the leak down test (should be at least 95% or higher), it is running far too hot for its' own good. Check out this video series (if you don't watch them all, for sure watch #3 in the series) th-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html Yes, an External Breather System will help the bike run stronger and last longer, but it is not the entire solution to the heat or the burning oil.
@@DKCustomProducts I just made a leak down test myself and found the rear cylinder is good with 97.5%. The front cylinder is at 25% with air coming out of the intake. I made the test 3 times on the front cylinder to confirm it. Now I am waiting on the service manager from my HD dealer to call me back.
@@ellomred7713 Bummer. But glad you found out what the issue is. Hopefully they will be stand-up and take care of you. Thank you for getting back to us with what it was. Once they pull it apart and find out WHY the front cylinder is not holding, if you could let us know, that would be appreciated.
@@DKCustomProducts I will let you know. Thank you for your input on the issue, it is highly appreciated. Just installed the Flo reusable filter and your relocation kit. I have the Jim’s cooling fan and your 1“ tanklift sitting here to get it installed as well to cool the motor down.
@DKCustomProducts got a call today from the dealer and they weren’t able to produce any leak down on the motor. They stated, that they were able to get pressure by rotating the motor in the push rods. They asked which oil I am running and blamed the Amsoil 20-50 syn. I changed now over to redline 20-50 syn. Let’s see how that will work. They want me to monitor the oil every 1k miles, if it’s less than a quart it’s good by HD. I will proceed with my Feuling cam, cam plate and oil pump change, to see what happens. Other mods in the pipeline: Jim‘s force flow fan, tank lift deluxe, A1 oil pressure gauge, tab performance headers, dynojet target tune, S&S roller rocker arms and maybe the Ultracool oil cooler with fans. I already have the dkcustom deflector wings at the front and a Jesse oil temp gauge. I am still trying to figure out if I should go with a catch can, but it has to be reversible because of the German TÜV inspection guys.
No, it is all positive pressure that is pushing through the hoses. It can help if you are having a lot of condensation due to shorter rides and the engine not fully warming up. This is a good video on what EBS will fit your Air Cleaner and at the 8:28 minute mark Dwayne talks about this subject - th-cam.com/video/XI_FmsiGbBM/w-d-xo.html Here is another good video where they talk about routing your EBS up and over - th-cam.com/video/XI_FmsiGbBM/w-d-xo.html Thanks for commenting! MB
@@DKCustomProducts Thanks. I have an 01' 883 that I'm using the breather bolts on. I'm getting some oil out dripping from them so I may do the catch can.
The catch can or filter system would definitely do better at not getting that oil on your bike. If you need any help deciding which EBS to get please feel free to contact us; Support@DKCustomProducts.com 662-252-8828 Thanks for commenting! MB
Can this type of modification be done on a 2021 Honda CB500F? I just got the bike recently, pretty much brand new. It looks like there is a breather hose with a plug + clamp on the left side of the bike (which I’m assuming works like a catch can), but I don’t know if the bike is designed to recycle the oily hot blow-by gas back into the intake, or dispose of it into the tube.
While we don't know anything specific to your Honda. All engines sold in the USA, including Honda's, must push that hot, oily, oxygen depleted air back into the intake. Hopefully you can identify the route taken to do that and push it into a filter or catch-can.
On the instructions it does state to coat the inside with some oil to prevent rusting. If you are not getting a lot of oil in your blow by it will be mostly water and without some oil on the internals they will rust. You can email our customer service at Support@DKCustomProducts.com and we can help you with this issue. I am sorry for any inconvenience!
And it is still rusting? Please send us an email at Support@DKCustomProducts.com with a picture and we will see if we can help remedy this situation or if you just need new internals sent to you. I am sorry for any inconvenience this may have caused you! We appreciate your business and you for letting us know! 👍
Are you joking? If not, and you watched the video, I can only write out here what we said in the video. They both function exactly the same. So on functionality, neither one is better than the other. If you want to see what was going into your engine, then the Catch-Can is allows you to do that. Other than that, it is purely a matter of which one YOU like the looks of better.
Thanks for reaching out. I don't know what a banfoleros is. But if you call or email us, we will help you with whatever your issue is. Support@DKCustomProducts.com or 662-252-8828
Don't just run a hose! The oily deposit will attract dirt.....My situation: I put a catch can with a filter on, connected to my head breather hose, and clamped it to the left (primary) side front riser of my frame....Okay. When I checked/drained the can after a few hundred miles, there was a good amount of what looked like water, not oil, in the can. I collected it in a container, luckily. But I think this is from heated air that cooled and condensed. Anybody's thoughts?
Condensation is found in the catch can when the weather is cool/cold and/or when there have been a lot of short runs...where the engine did not get to full operating temperature and stay there for a while. This is because water is a by-product of combustion AND because of the heating and cooling cycles which result in condensation. When an engine is fully warmed up and runs for 15 minutes or more at full temp, all the water is expelled as steam....otherwise, it collects in the catch-can.
@@DKCustomProducts Thanks for the reply. I appreciate it. My bike is run for a half hour at least because of where I live, and takes a while to warm up. So, yeah, that makes sense. Thanks again.
I have a 2016 dyna switchback with the HO 103, I get some seepage from both breather bolts onto the cylinders, not alot but enough to annoy me. Will this system fix the leaking completely?
Any downside to running the hoses up above the air cleaner instead of below? I want to route the hose to the other side and going up will be easier. Not sure if the sitting oil there will increase backpressure too much or if it doesnt make a difference.
Great question. The sitting oil does not increase backpressure/reduce performance at all. I run my hoses up and over on 2 of my bikes, and have been doing that for well over 75K miles on these two. Back 10+ years ago I ran them that way on my Sporty for years. The only situation where I would not do that is if the bike was ONLY used for short runs of less than 30 minutes and Never had any longer rides. Here's a link to a photo of one of my bikes where I'm running it up- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/s/t/stealth_ebs_chrome_2_1.jpg Here's a photo of a Customers bike where they ran it up and over to the other side to a Catch-Can - www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/s/t/stealth_breather_tc_2.jpg
Another brand had a recall. The crank vent hose had a low spot. Repeated short trips in cold weather could build up condensation. In freezing weather ice could block the crankcase vent, resulting in blown seal that could dump oil onto the rear tire. Recall routed the hose on a continual downhill, so water couldn’t fill in a low spot. I used to commute on a Road King in the winter, as long as the roads were dry. I’d try to do a longer trip every week or two to let the engine get fully warm, but when I had occasion to take the breather system apart I was shocked at how much water there was…
i just bought the filter one from you for my trike after the rebuild of engine the pistons before rebuild carbon was really bad according to mechanic reason for rebuild on the 2018 flywheel bearings got destroyed reason unknown also oil pump was bad they said only thing they kept was the case for lower and heads everything else gone the only savior was it was under warranty still by some miracle. thanks for the products and videos for helpful tips
Thank you for your business, we appreciate it, and I believe you will be well pleased with the External Breather System. 👍 Glad you got it rebuilt...sorry that happened. Even though he said he does not know why the engine grenaded, it is almost assuredly either from heat or from sumping, or both. Here is a Report that you may find useful/interesting- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm I had almost the same thing happen to my Twin Cam, over 10 years ago. That is what set us on the R&D to make sure it never reoccurred. The report linked above is the result of over 10 years of study and a couple hundred thousand miles of testing.
You can check your oil level to make sure that you do not have too much oil in the bike, that can cause excessive spitting as well. The catch can does a much better job containing the oil if you have a bike that spits a lot. Here is a video talking about bikes spitting- th-cam.com/video/EfDeFZblMck/w-d-xo.html Feel free to contact us for any help that you might won't or need; Support@DKCustomProducts.com 662-252-8828 Thanks for commenting! 😎 MB
Well, as you alluded to, the vented dipstick in MUCH more expensive...but what really is ironic is that vented dip stick does not eliminate the Hot, OIly, Oxygen depleted air from going into the combustion chambers, which is a power robber and a longevity issue. Yes, it does reduce it some, but since it does not eliminate it...it is really only something to look at if you have a sumping issue. And if I had a sumping issue I would resolve it at it's source, not put a bandaid on it. The other reason is if one has a built engine, that for some reason is building excessive Crankcase pressure, that would be a reason to have both a dip stick vent and an EBS.
I have a 2020 Heritage Classic with the Screamin’ Eagle Round High-Flow Air Cleaner - Center Bolt which catch can system would fit my bike? I am getting blow by mostly when RPM's are high at highway speeds for longer runs.
If you contact Dwayne by email or phone he will be able to help you out. He will probably need a photo of your set up, or the part number. Depending on which one you have, we have at least one that will fit, possibly a couple. Support@DKCustomProducts.com or 662-420-4891
@@jamesgriffin1662 For that Air Cleaner the options are the four that are seen at the link below- www.dkcustomproducts.com/diy-external-breather-systems-348.htm Here is a video showing how the install works on these- th-cam.com/video/uAmPC_kglJk/w-d-xo.html
I am a new 2021 HD Sportster owner, and do not want to replace the factory air cleaner at this time...but want to put this external breather on. Can it be done? Based on the look/feel of the factory air cleaner, it seems I'd have to drill a hole for the tee/hose to pass through, but am not 100% sure. Thoughts? I plan to order from you guys (would like a black catch can, but am not TOO picky). Much thanks in advance.
What great timing. This weekend we are publishing a video on the installation of an EBS on a stock air cleaner on a Sportster. It can be done, and works well...yes, one hole needs to be drilled to feed the hose out of the air box.
Is there anyone that has info on the idea that the original configuration needs to be under vacume? And useing the breather config makes a free breathing type issue.. dunno? Just askin.
Engines have been running with External Breather Systems for over 100 years. Running an EBS is only going to help your engine run better. There is no measurable change in crankcase pressure on the original configuration when running and EBS.
It looks like either one of the following will fit your bike and air cleaner. If you want to find out if there are other options, please email or call. Support@DKCustomProducts.com or 662-420-4891 www.dkcustomproducts.com/twin-cam-discrete-head-breather-system-touring-softail-dyna-dk-tc-brt.htm www.dkcustomproducts.com/external-breather-system-w-catch-can-harley-twin-cam-dk-tc-brt-cc.htm
Vented transmission cover to relieve pressure and lessen the amount that will make it to the intake in the first place…. Seems like we all should be doing both
Why? Vented Trans still send hot, oily, oxygen depleted air to the intake, so an External Breather System is needed. If you have an EBS there is 100% of pressure relieved, there is no hot, oily, oxygen depleted air going into the intake, so where is the need for a vented transmission? btw, the only reason for the dipstick vent or trans vent was because of the bad oil pumps the first few years of the M8. That has been resolved...and if one has an early model M8, it is highly recommended to get the latest oil pump, which alleviates the extra pressure in the crank. The only time that it makes sense to run a vented dipstick or trans vent, in addition to an EBS, is if one has a highly built M8 with a very aggressive cam, and/or really high compression...reason is that more than the normal amount of pressure will push past the rings into the crank, building excessive pressure. That said, I know a few guys with built 131's, running an EBS, and running them cool, and they have had zero issues.
@@DKCustomProducts are you certain? That the EBS relieves crack case pressure ? How? It seems to me that the EBS relieves the symptoms, but not the cause.. but you are right it’s for higher built motors. I’m running a woods 22xe on a lowrider st .. so I’m thinking from that reference point
@@drainmonkeys385 That is exactly what the breather bolts do, relieve crankcase pressure. If there were no crankcase pressure, there would be no need for breather bolts. Here is a video with a diagram of how the crankcase pressure is routed up to the breather bolts. th-cam.com/video/x61yu0HKW5c/w-d-xo.html The entire video is useful, but starting at the 1:30 mark is where the manual description of the "crankcase breather system" is shown.
There is no reason that installing an external breather system would cause water to go into your crankcase. You are rerouting the hot oily oxygen depleted air out of the throttle body into a filter or catch can. 👍
Good question. Look at the link below, it is a fairly typical picture of what is being blown out. That is Not something you want to be in your oil circulating around in the engine. Just like it is not good for it to be in the throttle body or combustion chamber. www.dkcustomproducts.com/media/wysiwyg/Catch-Can_Glop_1.jpg
Technically it could void the HD warranty, but we have never heard of any dealership doing that. Not using one will reduce power, and cause premature wear in the engine, but it is so gradual that most folks don't notice it.
@@InHimwillitrust I like the premium discrete with a filter. Having a filter or a catch-can (they both provide the bike the same benefit) comes down to a preference, as discussed in the video. Here is a link to them - www.dkcustomproducts.com/all-twin-cam-engines-c76-244.htm You can order at the above link, or I recommend calling or emailing in and letting them know which air cleaner you have and they can point you to which ones will fit your air cleaner. Support@DKCustomProducts.com 662-252-8828
It does not. Here are a couple of videos that you may find useful about HD Warranty- th-cam.com/video/M-QdwkZ3_RQ/w-d-xo.html th-cam.com/video/3etb7O62GOA/w-d-xo.html
That system would require modifications using the DIY kits found here... www.dkcustomproducts.com/diy-external-breather-systems-305.htm The install procedure can be seen here... www.dkcustomproducts.com/acl/diy-external-breather-system.htm
I am sorry, but I do not know if it will be the same for cars. We have not done any testing on cars. I am sorry I can not be better help! Thank you for commenting! 👍 MB
You can order online, at either of the following links- www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2352.htm www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley.htm or you can call or email at- Support@DKCustomProducts.com 662-252-8828
I have a HD SE air intake and DK Customs External Breather with Catch Can. The earlier version of your catch can. What’s the improvements with your new version?
If you do not have a real spitter (the oil is not overwhelming your smaller catch-can) then you do not need the newer one. The newer one is larger, so it can hold more between needing to empty it. The newer one is a 4 Stage filtration inside the can. The improved filtration does a MUCH BETTER job at keeping all the oil in the can...this is really important for bikes that have a lot of oil carry-over. You can see in the photo below that the filtration is made up of 8 individual components, designed to let the air out and keep the oil in. The Catch-Can you have now has just one piece of foam in it. www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/c/c/ccdk_apart_6_1.jpg
@@DKCustomProducts thanks. I lost the old foam and replaced it with the breather foam (cut to size) from a b&s lawnmower. It doesn’t seem to capture the oil like the original foam filter. Can that filter setup for the new can be used in the older can. It’s not a big deal. I just had to clean it more often this summer.
@@h3r63rt You may be able to make it work. Never thought of it, nor did we try. You can see the replacement kit at the link below. You would definitely need to cut it a bit, and not use all 8 pieces, but it seems like it could be adapted and work very well. www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2095.htm
The catch can is a big part of the cost! Please feel free to reach out with any questions you might have; Support@DKCustomProducts.com 662-252-8828 Thanks for commenting!
More than most bikes spit between oil changes, about 1 ounce, which is more than 99% of the Harley's out there spit between oil changes. We recommend emptying it at every oil change. We do have Customers that have serious oil spitting issues that have to empty the can every 1-2 thousand miles.
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I'm 68, been riding since 1977. These two Gentlemen are awesome and their videos never waste your time. Thanks Guys!
Thank you for your kind words! Glad you are finding the videos useful/interesting. 👍
Thanks for this video. I now have the external breather installed in my bike. I chose the filter. I drilled the holes and installed the brass hose connectors into my SE Chisel air cleaner. I routed the hose up over the throttle body, under the tank, and over to the plastic shelf behind the right side cover. The filter sits in a small rubber made bowl. After a few hundred miles, I inspected it and logged some more miles after adding some sea foam to the tank and spraying some B-12 throttle body and carb cleaner into the throttle body. It's very gratifying to find the air filter dry as bone without any oil contamination. I checked the Breather Filter again and it was wet with a bit of oil in the bowl. A quick clean up and she is good to go again. I may end up getting the catch can but it all depends on how well the filter set up works. So far I'm a happy Harley Rider. Thanks again
Glad you are liking the EBS and seeing the benefits of having one! Thank you for commenting!
I’ve got the breather filter installed on my 03 Heritage Softail and it runs amazing with the fresh air,no more garbage being blown back into the throttle body,simple to do
So glad you are liking not only the products, but the benefits of them as well!!!!! Thanks for commenting!!!
I ran the hose to the chain and my rear wheel is well lubricated according to the dirt on it!
lol, yep!
@@DKCustomProducts yet the chain is grinding dry. I must re-route the hose closer to the road and forget the "too easy to be true" -trick!
I ride a 2018 Road King standard with the 107 M8. She has a stage 2 with a Fueling 465 cam, Bassani Road Rage exhaust and an Arlen Ness Big Sucker air intake. She’s a spitter! I suspected she was, so when I installed a DK external breather system half way through the summer, I installed it with 2 cans, hanging a can off of each cylinder out in the open just behind and below the air filter. They are out in the open easy to get at. I have to empty them every 600-800 miles. But I don’t mind because servicing the cans is a simple process. The crap that comes out of these is just amazing and I’m glad I’m not running it through the bike anymore. Why is she a spitter?......From an earlier video, I knew not to overfill the oil and I always run at or below the half way mark on the dipstick. I suspect the oil pump. She has an OEM pump that’s 1st or 2nd generation for the M8s. Harley is now on generation 4. To me, it’s just not worth it to put in a new pump because she’s never had a wet sumping issue where I’ve had a loss of power. In summary, I really like and recommend this product. Whether you buy the can or the filter depends on your installation. Mine’s right out in the open and the can looks good. If I did more of a hidden installation I probably consider the filter.
Yes, I would suspect the oil pump is the source of all that oil carry-over also...it sounds like it is not doing a good job of scavenging.
Really great to hear that the Catch-Cans are keeping it under control for you. We appreciate your business. 👍
Try a vented dip stick by Fueling or A1 Cycle it will solve your problems!
@@glencross4461 Yes, a vented dip stick will reduce the amount of oil in his EBS catch cans. Some of it will now be in the vented dip stick catch can, or along the bike if he uses a filter.
But it does not solve the problem of reducing the spitting, it just re-routes it.
@@DKCustomProducts yes it reroutes it so it’s not in your intake system anymore that’s a win for me! Happy New Year! 👍🇺🇸😎
@Glen Cross Happy New Year! Yeah, a vented dip stick re-routes Some of the hot, oily, oxygen depleted air, but not all of it. There is still performance robbing crap going into the intake, just not as much.
Had the external filter on my Road Glide along with the 828 for 2 years now and love them both!
It is great to hear that you enjoying the benefits of having the 828 with EBS installed on your bike. Thank you for sharing and for commenting! MB
i have the Catch-Can on my 01Road King. On the bike for around 700 miles so far so good not much in the can yet just a lil oily but the carb is staying clean and its not going in my engine. just FYI when new the fins on my Catch-Can were very sharp and easily cut my hand when I tried to open it the first time. And it just looks awesome...
Glad you're liking it! Appreciate your business. 👍
Both, kind of... On my 98 Softail I run the breather bolt hoses to each end of a tee and from the middle leg I run that hose to another tee orientated so the side leg getting the hose from the breather nuts is horizontal. The inline ones on each end are now vertical, I run the bottom hose down to the bottom of the bike with a plug in it. The other end pointing up goes to a little filter. The bottom leg acts as a "catch can" and allows the air to go up and out the filter. My 91 FL is bottom breather EVO, that one I put a small actual catch can with a filter off that. She is getting older and the check valve in the pump will let about a tablespoon get by after a couple weeks. The can catches it all nice and neat, do not have that problem with the 98. The 74 ironhead is a whole different story...
I like you double hose set up. Nice. 👍
Running your filter set up hanging under my AC, while I like the concept it does throw alot if gunk down the side of my '09 UC. Thinking of ordering a catch can or just getting a 'T' & more hose & placing it under the frame.
Some of the older Twin Cam's do spit more than other bikes. You can check your oil level to make sure that you do not have too much oil in the bike, that can cause excessive spitting as well.
The catch can does a much better job containing the oil if you have a bike that spits a lot, or you can do like you said and route it under frame.
Feel free to contact us for any help that you might won't or need;
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting!
I have been running the catch can on my 2017 RGU for almost 15k miles.
Yes, I noticed a difference from day one.
Cool, we appreciate your business and thank you for commenting. Glad you are enjoying it!
I'm in favor of venting my trans top plate (DIY) , adding a check or pvc valve and a catch can to relieve the pressure/oil mist heading into the intake.
Yes, the dipstick or trans cover vent is a popular internet phenomena right now. We've seen no testing to validate the vacuum theory. We are going to be doing some testing soon. I don't believe you will damage your bike by doing it, but if you vent the head breathers in addition, you will be keeping the bike in better condition. Thanks for your comment. 👍
Back in the 70s used to run vent over to the drive chain, right where it came out of tranny. Dripped on the chain keep it lubed, relieving C.P. in the process.
Yep, remember those days well.
Helpful video, ive got a small 105cc big bored cub *yamaha townmate* and because the crankcase is still small 50cc at prolonged high revs it just pukes out oil everywhere all over the center stand so i ordered a oil cap with a breather hole to add a second pressure releif point so if that dont fix it the oil catch can it is.. 🙏
I do not know much about Yamahas but you should also make sure you are not over filling with oil.
hey fellas i just ordered a breather system for my 2014 low rider. i decided on the filter instead of the catch can. my question is if the filter starts to fill up with oil, will the oil come out eventually through the filter? or just build up in the filter? i prefer it just come out instead of building up in there. thank you for the great products. i had ordered a catch can for more road glide and loved it by the way.
How the oil builds up depends on a few things-
1. How much does your bike spit (every bike is different)
2. How long do you ride
3. How far away is the filter from the intake
The further it is away from the intake the faster it will build up. The closer it is, and the longer rides you take will have enough hot air reaching the filter element that it will vaporize and not build up as quickly.
Glad you are enjoying the parts, and we appreciate your business. 👍
My old man had one of these fords, I believe it was a 96.
He let me and my brother drive it to school and I remember when we shut it off it would try restarting back up and act as if it was starving for fuel.
Haven’t done no digging into it as it’s been sitting for years now. I’ll eventually be back wrenching it.
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@@DKCustomProducts this was suppose to be a comment on a car wizard video lol.
Ah! Glad you landed on our channel. Hope you find the videos interesting/useful. 👍
Thanks for the video. I just ordered a breather system from you guys and I am looking forward to installing it. My bike is a 2019 Street Glide Special. I ordered some extra black hose clamps to aide in keeping my blacked out theme. Great videos and I am a new subscriber. Keep the awesome videos coming. P.S. I went with a catch-can.
Glad you are digging the videos.
Thank you for your business, we appreciate it. I believe you will be well pleased with the Catch-Can EBS.
Thanks for the Sub.
I had a 4 cylinder Suzuki with just a hose. My wife always complained that after a ride I smelled like gas or oil.
I made a catch can, and that issue went away.
Good deal! 👍
What's she complaining about these days😊
@@docdeens4030 other stuff
I have a catchcan with a breather filter on a bracket I made hanging on my road bar down in front of my oil cooler
Cool, appreciate your business, and I know your bike is thanking you for that.
I got 09 sportster 1200 custom i drilled 2 holes thru the air filter plate put 2 hoses to the vents thru the holes i drilled put a 3/8 TEE barley see my catch filter so far not one drip of oil mines right under the air filter
First I just want to say you guys are the best when it comes to custom builds, more experience and knowledge than anyone else IMO and you share that with the world. My question is what are your opinions on running the hose near the chain? Would you suggest using a filter if my goal is to lubricate the chain?
I would be hesitant to use the blow-by to "oil" the chain. Depending on what bike you have it may spit enough oil or not. Then it is a matter of what it is spitting, some of it can be a really gummy mess. Take a look at the two linked photos below to see what typically comes out.
Also, most chains now days are sealed, and what little lubrication they need is specialized for the rubber seals.
www.dkcustomproducts.com/media/wysiwyg/Catch-Can_Glop_1.jpg
www.dkcustomproducts.com/media/wysiwyg/black_oil_from_catch_can.jpg
@@DKCustomProducts makes sense but how about if I’m running the filter over the chain? As long as it’s cleaned during services I don’t see how the little bit of dirt on the filter would be much different than the normal dirt and debris the chain picks up from operation
@@exzackt No, getting dirt on the filter is not an issue. It will breathe as much as it needs to, although it should be cleaned periodically (depending on conditions, every 5000 miles or so. Here is a video on how easy it is to clean. th-cam.com/video/be3R3KSmc4c/w-d-xo.html
@@DKCustomProducts ok thanks. Are you saying if I run the external filter over the chain, the filter will work to clean the blow-by of any of the nastiness that might be coming out of the blow-by? Would be a trick setup to put that wasted oil to good use
@@exzackt Yes, the filter would clean up a bit of the nastiness, but it might clean it up so much that not much oil would end up on the chain at all. If your bike is a pretty significant spitter, and it is mostly oil (not much water), then you might want to run just the hose if you want to use that oil on your chain.
i used a filter like the one in the video, no more hot dirty oil getting sucked into the TB and making carbon on the pistons and valves, my 16 RK runs better, also true duels, breeeeth much better.
Always nice to have a great running HD and know you are taking great care of it.
Just made my arlin Ness filter vent out with a grinder and other air tools
Good deal! 👍😎👍
Two questions: What happens if the catch can fills and doesn't get emptied? Is their "noticeable/measurable" power change after installing either the catch can or filter?
Great questions, thanks for asking.
1. If the can fills up (rare) then oil will start seeping out the vent holes on the top. It will continue functioning as it should.
2. Most folks do notice an increase in power. (but not everyone...I believe it depends on how you ride and how well you know your bike)
It is measurable, you can see the dyno chart linked below. Here are a couple of comments from Customers.
"Ordered the breather system for my wife's Twin Cam Freewheeler and my Heritage Classic 114 Milwaukee 8. Easy installation instructions and high quality components. The performance on both bikes have improved and they are running cooler in the warm FL WX. Highly recommend you install the breather system(s) on your Harley. You will not regret it! Thank you! (Posted on 5/17/2021)"
"The first thing I noticed was my engine was running cooler! Maybe I’m just imagining things, but I seem to have more power."
"Install was easy, all parts needed were there. I noticed a little more get up and go when I hit the throttle, even the ol'lady noticed it. I ordered the braided line with it, looks great. Thanks DK. (Posted on 3/1/2021)"
Link to Dyno- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breathertest_1_9.jpg
@@DKCustomProducts Thanks DK. Great information. I think is awesome that you still even reply to the questions after nearly a year. ; )
@@randywedell91 Thanks man, appreciate the kind words.
Purchased the premium but went to an arlen ness monster sucker,just actually finished installing the barbs for the ebs
All the other parts are usable
Catch can looks great
Thank you for your business, we appreciate it. I am sure your bike does too!
👍
Agree on pre oil on the road.
👍😎 Thanks for commenting! MB
Wonder if any chain drive guys, route a hose directly over their chain, sure it probably wouldn't totally keep it lubed, maybe too much water to?
We do have some Customers that have done that. Water is a non-issue, the chains are exposed to rain and puddles.
It is a function of how much oil a particular bike expels thru the breather bolts and a function of the environment.
I love and want the black catch can breather kit, but the shipping cost of 71 to Netherlands is crazy.
That does not seem right...but who knows what the postal services are doing right now during the pandemic. BUT, if you will write Support@DKCustomProducts.com with what you want, and your address, they can check and see if there is a better price than that...hopefully it is a lot lower than that.
@@DKCustomProducts yeah same to australia nearlly the same as the catch can just for postage " thats so wrong
@@damienfrigo4734 Yeah, shipping costs from the carriers just keeps climbing.
Write Support@DKCustomProducts.com to see if there is anything less expensive.
The other thing is that usually a larger package is not that much more expensive than a small one. Getting multiple parts at a time for yourself (or a group buy) will lower the cost of shipping per item quite a bit.
Got one for sale in the Netherlands if still interested
I did the filter option on my 07 Softy when I went to 110ci, clean it every oil change
That's great! I'm betting your engine likes that. Appreciate your business. 👍 Have you seen the little vid we made on cleaning the filter? th-cam.com/video/be3R3KSmc4c/w-d-xo.html
Thanks for your time guys, I appreciate your help and your products. On my 06 Flhpi with a tc88 , how do you add an external breather with a big sucker air cleaner? The backing plate has two slots for the factory breather hoses that sit under the air filter, when relocating the breather hoses from the factory breather bolts to the y connector it leaves the two channels empty to let un filtered air in to the throttle body. Basically it looks like I need to use some type of filler to close them off or is there a different backing plate that doesn't have the gaps ? I appreciate any help you can give? I have a 06 RK flhpi TC88 w/ Delphi injection I have the basic A. N. Big sucker kit . Am using factory breather bolts with the nipple on them and 1/4 hose routed behind the plate and over the frame. Haven't finished the install yet and haven't heard back from A. N. About it. Probably because they don't think you need an external breather with they're A.C. setup?
Most folks use high heat RTV or silicone to plug those holes. We have a step by step with photos of it in the "technical info" tab at this link- www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm
Some folks use set screws, as seen in this video- th-cam.com/video/uAmPC_kglJk/w-d-xo.html
The other option is to get a different backplate, that will allow you to use the filter element and cover that you already have. You can see that at this link- www.dkcustomproducts.com/naked-hiflow-606-air-cleaner-back-plate-dyna-softail-touring-rushmore-w-no-filter-element.htm
mount your filters above your source and this will minimize the oil output. the vapor will escape as wanted and the majority of oil will run back down hose. the engine intake breather i just vent to the ground below frame with open hose. but i have very little blow-by. some of these aftermarket parts companys are making big $$$ on manufacturing venting parts, aka dipsticks and tranny plates. it's way easier than that. do your research. lots of info out there.
Thanks for your input! 👍
Good video is it bad to see small amounts of white smoke come out of the filter while starting sometimes more when hot
Thanks, glad you enjoyed.
Th white smoke is the water burning off, it is normal and nothing bad about it.
Should I vent my dipstick as well as at the air cleaner? Or do I just need to vent at one location?
Great question. Venting the dipstick only stops some of the hot oily oxygen depleted air from going into your combustion chambers...Not all of it. The External Breather System stops ALL that crap from going in. A vented dipstick is trying to relieve the same crankcase pressure as the EBS, so no need to do both.
There is one exception...if you have a weak oil pump that is not scavenging well, or have a very high compression ratio resulting in excessive CCP, then doing both can reduce the possibility of sumping.
Awesome thank you for confirming my thoughts. Can’t wait for my 4 stage system to come!
@@paulbassett3638 Cool, we appreciate your business, and believe you will be well pleased with this mod.
I used some braided hose and try to route it behind the exhaust to the catch can. Bad idea the hose touch the exhaust and the braids burned and left a burn mark on the exhaust. Lesson learned they are not head tolerant enough to touch the exhaust directly.
You're absolutely correct. Never let any hose touch the exhaust or the cylinder/head fins.
@@DKCustomProducts Can you recommand a location to mount the oil catch can? I own a 2020 RGS and I just can't find a good location to properly mount it to and can have the hose connect to it. Thank you.
@@georgezhou1415 There are a lot of choices. I will share where I have mounted mine, but it is by no means exhaustive.
1. Below the air cleaner (sometimes there is enough room, sometimes not.
2. Below the rider floorboard on the right hand side.
3. On the left side behind the cowbell horn.
4. On the left side swingarm.
There are some photos showing some location ideas at the following two links-
www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley.htm#!prettyPhoto
www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2174.htm
Why not a vented dip stick ??
While it will reduce the hot, oily, oxygen depleted air going into the cylinders, it does not eliminate it. So, why spend more money to do half the job?
Thank you for your Honesty.
Thanks for watching our vids and comment!
On the filter any sediments when you wash it won't it just keep building up, like sludge plugging it up or is it all liquid that it catches
When you spray the filter element with S100 or Dawn soap or Simple Green, or similar oil cutting cleanser, then let it sit for a few minutes, you can then spray it off and it will be clean, like new, INSIDE and Out. No build up.
Check out the video we made on how to clean the filter- th-cam.com/video/be3R3KSmc4c/w-d-xo.html
Thanks for the video. I just ordered a breather set from you guys and am looking forward to installing it. My bike is a 2013 Fatboy with about 13k km (so, only about 8k miles). I’m wondering if any carbon that may have built up might eventually burn off, or do you think I need to consider mechanical or chemical solutions? I don’t have any noticeable tuning issues at the moment.
Glad you're liking the videos, and we appreciate your business.
It will burn off. Periodic higher rpm runs (once fully warmed up) will help it burn off more quickly.
I do not use chemical solutions. They can be effective, and 99.5% of the time there is no problem with them...but that little chance that a big piece will break off and damage a valve or valve stem...that is not worth it to me.
Once in a while ride it like you stole it and the carbon will burn off
Just found this channel. Great content!
Thank you! Appreciate the comment, and good to hear you are enjoying the channel.
I have an Arlen Ness big sucker that has the hoses going back into the air cleaner I don’t wish to change out the air cleaner all I want to do is redirect the oil into a catch can beneath the air cleaner what is your recommendations? My Arlen Ness big sucker is the large filter using the stock pier cleaner Cover.
Pull those hoses out of the back of the air cleaner, plug the holes in the back of the air cleaner. Route those hoses to a t-fitting and then to a filter or a catch-can. Feel free to text or email us some photos of your set up and we can direct you to what parts will get that done for you. 662-420-4891 or Support@DKCustomProducts.com
DK! I'm sold on one! I have to have it!
Cool, we appreciate your business, and I believe you will be well pleased with it. 👍
@@DKCustomProducts For a 2019 Road King FLHR M8 107. How much for the Barrel-One? Not the K&N one.
Dwyane sold me the Relocation oil-filter kit. Comes tomorrow. Looking forward to a VERTICAL filter😎. Tank's
I have 08vtx1300c trying to create a vent port on rear cylinder covers are similar front ventilation port and rear stud which is solid aluminum is it agood thing to vent the rear cylinder similar to a harly motor from colorado Kevin Hill
I wish I could help, but I really have no experience with the VTX
It's avaible for car too ? Cuz i own a turbo diesel car, and hesitate between catch can or just filter, any advices ?
There are dozens of companies that make External Breather Systems for cars and trucks. We do not. But it is a good idea.
Do a google search for your particular auto/year and you should see many options. Sometimes they are called crankcase breathers for auto's, so you might want to search with those key words also.
@@DKCustomProducts
Okay thanks ! 👍
In the automotive world (I'm a mechanic, but also a biker) we call it the Positive Crankcase Ventilation system (PCV for short) and generally on cars and trucks, any oil vapor coming thru the PCV is extremely minimal. It maybe amounts to a teaspoon every 10,000 miles. That said, I've personally installed a catch can on my Dodge Challenger.
I digress. The PCV system that dumps back into the intake is required by law, as per the shitty EPA, to be a part of all vehicles produced now. Something worth noting is that crankcase ventilation is a vital part of ALL 4 stroke engines, but in the past, it used to vent to atmosphere instead of back into your intake.
I've personally never known the issue too be as significant as it is on Harleys. To me, there's clearly a design flaw somewhere. There should not be that much oil coming out of the breather as it does on Harleys, M8's in particular and Twin Cams to a lesser extent.
Thank you for your well thought out comment. 👍🏻
I'm also a mechanic (jet fighters, Bronco turboprops, cars, trucks, bikes and anything else that holds still long enough to workon) since the 1970s and have seen MANY automotive intake manifold PCV passages CLOGGED by baked on oil. HD crankcase pressures due to the common crankpin tend to be high but those problems were solved before WWII with road draft tubes on nearly every piston engine until the PCV valve era in the 1960s. A catch can and NO PCV connections to the intake is the wise move for cars for owners who don't just run a road draft tube or don't want to sort out vaccuum hoses which can be more hassle than just interposing a catch can.
thanks for your video. you both do a good job. do you have a video on how & where to hook up the hoses and what all i need. i have a 2002 softail. thanks much for any help
We have quite a few resources on that. Sort of depends on what kind of EBS you are using with your CC or Filter, but here are a few-
th-cam.com/video/5tTkzGol2G4/w-d-xo.html
th-cam.com/video/P5kqcm0Lx1o/w-d-xo.html
If you're installing with a stock air cleaner, look at the Technical Tab at this link- www.dkcustomproducts.com/twin-cam-discrete-head-breather-system-touring-softail-dyna-dk-tc-brt.htm
Feel free to call or email Dwayne with any question unique to your set up. Support@DKCustomProducts.com or 662-420-4891
What kinda softail you got I have 02 FLSTF Fatboy
I have had mine vented for years with custom tubing and fittings from jegs. Mine doesn't spray or mist out any oil any more at all really.
Thanks for sharing 👍
Mine either. It used to. I have a custom setup of jegs tubing. It looks sick with red and blue fittings and chrome angled piping. I get nothing anymore though...?
Could you do a video on an install on the hd heavy breather with a catch can for a twin cam
Don't know if a video of that will be in the works. We do not run HD Heavy Breathers, we run Outlaw 636V's, they are a forward facing design, but with a venturi component that makes them perform better than the HD HB's. However, if you click on the "Technical Info" button at the link below there is a pictorial of a step-by-step on how to do what you ask.
www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm
Also, at the following link there is a bit more detail with some words, in addition to the photos.
www.dkcustomproducts.com/acl/diy-external-breather-system.htm
I see from your pictures that on a 107 the catch can is attached next to the timer cover. What is it attached to ?
Not sure which photo you are referring to. However, both on the Twin Cam and M8, a popular placement is below the air cleaner above the timing cover, like in the link below. It is attached to the hose, nothing else. At first we thought it might move and bump into the pushrod tubes, but it doesn't. Hose is pretty short and stiff enough to keep it in place. If there is a different placement that you are asking about, let me know. www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/z/a/zammy_606_spoke_cc_ebs_3.jpg
I am lost and have looked and tried everything I can find. I have a large amount of coolant leaking from my crank breather on my vtx 1800
I wish we could help. We know nothing about VTX 1800's. Perhaps someone else here knows and can give you some insight.
I have a 22 LRS with a S & S stealth a/c. Shes a spitter. What product number should i use? I think i want to use a filter over catch can. I see a few thinks on your site....
Thanks for looking at our parts. The one at the following link will work.
Also, feel free to email or call with any questions.
Support@DKCustomProducts.com
662-252-8828
www.dkcustomproducts.com/diy-head-breather-system-touring-softail-dyna-sportster-dk-diy-bh-brt.htm
DK parts are awesome and they work.
Thanks man. Glad to hear you're enjoying the parts. We appreciate your business.
I used an old aluminum fuel filter and changed out the filter element with a small piece of sponge inside. Sponge soaks up most of the oily crap.
Very cool. We played around with modifying some fuel filters. Still have a couple sitting on the shelf. Is yours clear...I like the idea of seeing inside it thru the clear housing. How are you venting it?
@@DKCustomProducts No it's not clear. It was a one I had left laying around from a chopper build. I just connected on the end underneath the bike. Left the end open, so it goes through the sponge and out the other end.
@@southernstyle067 Ah, that is cool. Thanks!
I put a small inline clear fuel filter on mine. It's hidden under the trike. Seems to work perfectly.
What about breather bolts? I have some from Lowbrow Customs and TC Bros that I've never had a problem with.
Yes, we have had the Outlaw Breather Bolts available for over 10 years now (LBC & TCB complimented us by copying the idea). They work well on 99% of Sportsters, about 50% of Twin Cams, and about 80% of M8's. The filter in them is really small, so on a bike that is a spitter (has a lot of oil carry-over) they can overwhelm those small filters and get oil along the side of the bike. Good to hear you don't have a spitter. 👍 More info on them at these two links- www.dkcustomproducts.com/external-breather-system-breather-bolts-336.htm AND www.dkcustomproducts.com/external-breather-system-breather-bolts-328.htm
Here's a link to a video we've done on our Outlaw Racing Breather Bolts that you may find interesting- th-cam.com/video/W_8oCbO2yc0/w-d-xo.html
Filter thanks
Thanks for the advice I was leaking oil did not know it was designed this way first harley 08 touring classic going to ad a external with a filter
I have a 2014 Road King CVO after watching this video, I removed my Screaming Eagle air cleaner. It was full of oil. After looking closely at the engine breather bolts I'm not sure how it can be modified. The back plane has angled holes that lead to black spacer around my bolts to the heads. Can I replace my mounting hardware or drill a hole into them from the bottom and attach a hose, then tap and plug the back plane holes? Is there a kit for the CVO Screaming Eagle air cleaner?
Here are the different kits that will work with your ride- www.dkcustomproducts.com/diy-external-breather-systems-516.htm
Feel free to call or email with any questions.
Support@DKCustomProducts.com
662-252-8828
I got lucky and bought an 02 DYNA WIDE GLIDE W only 8k. On the clock. 88ci.Dyna. replaced the 16 " front wheel (still have a beautiful 16" for sale) with the stock 21". No leaks but for the u shaped hose atop the primary. The wind pushes up oil to the clutch cable adjuster. Minor deal but I hate parking at my bros house and finding drops. After bragging my bike doesn't Leak! How embarrassing. Only after a long hard ride. Any ideas guys? It's an 02 88ci.Dyna.
Give Dwayne a call or email at the info below. Would not hurt to give him a photo also so he knows exactly what you mean by a U shape hose atop the primary.
Support@DKCustomProducts.com or 662-252-8828
@@DKCustomProducts it's a small about a bit smaller than a #2 pencil od . on top of the primary say 5" long the u bends at the rear the open end points to the front. Made of black rubber. I was told by a mechanic it picked up wind pushing oil forward. In my case the clean oil went up the clutch cable an d seeped out the cable adjuster ebook midway up the frame downtubes. The ONLY leak on the whole bike! Made sense. I cut 1/2 of the curve at a slant. Then what would be better is a bit of screen shaped then a tiny hose clamp since its there for a small bit of breathing/balance. Better would be after adjusting the cable, (get this) and cleaning the adjustment/cable shaft sealing it with Black Gorilla tape (it comes in duct tape type rolls so strong it's exceedingly hard to even get it Off the roll!! Apply carefully and tight. Use a couple of wide black zip ties. Now when you park the oil naturally drains down! If you use the 2nd method no oil loss. You STILL get that tiny balance/ breathing. All my 63 yrs. Can come up with now. Even H.D.Engineers aren't perfect I.e.. The cam chain tensioner on some TWIN Cams like my 02. Lucky THAT part hasn't grenaded at 11000. Mi. Hope this long winded mess helps. G. K.
You Two guys are awesome always great videos
Thanks so much, glad you find them useful! 👍
Here is my deal on my 21 street bob 114. I bought an aftermarket breather off of eBay. It is one that has the glass see through cover. There is no external breather. Instead the kit just caps it off completely. Is that bad? I did notice after only 10 miles of riding. The glass was covered in moisture. Water. Is it good to have the system blocked off like that?
The air cleaner may look like it is capped off at the breathers. It is Not. It is feeding that hot, oily, oxygen depleted air into the air cleaner, and part of that is what you are seeing on the see through cover.
This is a very useful video on the subject to watch- th-cam.com/video/EfDeFZblMck/w-d-xo.html
Just so you know, if it were blocked off you would have oil leaking out of various gaskets on the engine.
For the longevity of your engine it will definitely last longer if you are externally venting to allow all that hot, oily, oxygen depleted air out of the bike, rather than trapping it in and causing more carbon build up.
We have a variety of External Breather Systems that you can see at this link- www.dkcustomproducts.com/all-twin-cam-engines-c76-323.htm
If you are not sure which one will fit your air cleaner, please feel free to email or call:
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting! 😎 MB
Question when you add any kind of filter
Will that not create a back pressure especially when the filter get slightly
Plugged
It does not cause any problem. I suppose if it was caked with dried mud it could plug up enough to be a problem. I've run mine for well over 10K miles without cleaning and it has never plugged up enough to be an issue.
You may like a look at these videos-
th-cam.com/video/Kio4DEuOpCU/w-d-xo.html
th-cam.com/video/be3R3KSmc4c/w-d-xo.html
I purchased a filter and placed it above the air cleaner. My only complaint is that I smell the oil now. I'm thinking about removing and replacing it with a can.
For Gearheads....the sweet smell of oil, gas and burning rubber! 😃 If you want to get that smell away from you, there are many places you can locate the filter element. Look at this photo for one idea- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breather1_1.jpg
I put external breather bolts on my 2002 Fatboy barely anything comes out. Maybe a little get on the side of the bike.
Good deal, we appreciate your business, and glad you are enjoying the benefits. 👍
I have a 08 Electra Glide Classic. I really want a catch can mount indiscreetly. Do you have a Air filter External breather system I can use the Stock air filter cover with ? Would that have negative results?
Here is a link to a catch-can EBS that works with your OEM air cleaner and cover- www.dkcustomproducts.com/external-breather-system-w-catch-can-harley-twin-cam-dk-tc-brt-cc.htm
No negative results, the positive results are you are no longer feeding that hot, oily, oxygen depleted air into the combustion chambers. Here is a video you may find interesting/useful- th-cam.com/video/EfDeFZblMck/w-d-xo.html
You can also get a true performance air cleaner that you can run your stock cover with. I have done this with a few of my bikes.
Here is a link to it. Simply put your stock football cover over this one and it works great- www.dkcustomproducts.com/complete-hiflow-587-air-cleaner-sano-black-for-harley-twin-cam-dk-ac587-blk-tc.htm
Here is a photo of it on a Softail (works the same on your EG)- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/b/r/breathersoftail6d.jpg
How will the filter do on rainy days?
Your Crankcase ventilation system only produces positive pressure. Additionally there are breather valves in the heads just beyond the breather bolts. Think of those valves as a check valve that would make it virtually impossible for any liquid, including rain water, to compromise the crank case or engine oil.
I vote for the cheapest solution….old school “vent to atmosphere” …. We don’t need no stinking filter/catch can😂
Different strokes for different folks. 👍
EPA special agent Greta Thunberg would like to know your location.
😂😂😂 I put this filter in my car, 2€ . Here All win😂
is it needed for a 2021 road glide special? 2021 and above have a difference oil pump.
Yes, all engine produce crankcase pressure, which results in hot, oily, oxygen depleted air going into the combustion chambers. This results in less power, and carbon buildup in the throttle body sensors and pistons.
The newer oil pump was to fix the sumping issue, but it does not eliminate blow-by which is the power robber.
Every bike has different levels of oil contained in the blow-by, and an oil pump can have some effect of making more or less oil being suspended in the blow-by.
Here is a video with more information on this subject-
th-cam.com/video/tJXGEwLCNDw/w-d-xo.html
Thank you for this informative video. this answers many questions i had in my mind. just got myself a buell and planning to do the breather mod.
Congrats on your new to you Buell. It will like the EBS.
I used an in out catch can, filter on out side. What do you guys think of trask check m8
Vented dipsticks and transmission cover vents do NOT take the place of external breather systems.
There is still hot, oily, oxygen depleted air being fed into the intake.
The folks that sell vented dipsticks and trans cover vents, have it right in their product description that they do not prevent all that crap from going into your intake.
Here is a copy and paste from the Trask website- "This will reduce the oil exiting from the head breathers..."
Even if there is no trace of oil in the intake, there is still hot, oxygen depleted air going into the combustion chambers, making the engine run hotter, and not as strong because of the lower oxygen content.
IF you have an older M8, with the older oil pump and you are concerned about sumping...OR, IF you have a built engine with higher compression, then it may be beneficial to do an EBS And a vented dipstick or trans cover vent.
@@DKCustomProducts thank you
my sumping goes way beyond the volume of that catcher. I guess I need to have the ball valve looked at
If you are having a lot of excess oil carry over you may want to check the oil level in your bike. When you check the oil cold the level should be between the add a quart line and the full line. If it is at the full line when checking it cold you have too much oil in your bike.
Here is a video on that subject - th-cam.com/video/anShki_WeL0/w-d-xo.html
If you want to know if you are sumping here is a video that can help you determine if you are sumping - th-cam.com/video/94wXPj8ydMw/w-d-xo.html
If you are not sumping then you may want to do a leak down test. Here is a video that explains how to do a leak down test - th-cam.com/video/gojpttZQjKk/w-d-xo.html
Here is a video on a compression test that you may find interesting - th-cam.com/video/uIDxZdRB1kA/w-d-xo.html
I hope you get to the bottom of your problem. Please feel free to contact us with any questions;
Support@DKCustomProducts.com
662-252-8828
Thank you for commenting! 😎 MB
Hi DK, I have a 2019 Street Glide with the SE 128ci stage 4 kit installed. They installed the new HD oil pump and since then, the bike burns oil (can smell it from time to time) and the filter/intake has oil inside. Even the spark plugs are dirty. She runs hot 🔥 320 to 340°F. Had to refill oil twice now in less than 2000 miles.
I have the Trask Checkmate installed.
I will install the Feuling oil pump and cam plate as soon as Michigan warms up a little, if the runout is good.
Do you think, that a EBS will help with my issue? Or do you have an idea 💡 what could cause such an issue? Thank you in advance!!!
There are two things that I would look at.
1. They may have made a mistake in the installation of the Stage IV kit...we seen that happen. Have them do a Leak-Down test as a first step to tracking down the problem.
2. Whether it passes or fails the leak down test (should be at least 95% or higher), it is running far too hot for its' own good. Check out this video series (if you don't watch them all, for sure watch #3 in the series) th-cam.com/play/PLb3bvZgbH92_3s-2vv63QggFJ3nteFd_C.html
Yes, an External Breather System will help the bike run stronger and last longer, but it is not the entire solution to the heat or the burning oil.
@@DKCustomProducts I just made a leak down test myself and found the rear cylinder is good with 97.5%. The front cylinder is at 25% with air coming out of the intake. I made the test 3 times on the front cylinder to confirm it. Now I am waiting on the service manager from my HD dealer to call me back.
@@ellomred7713 Bummer. But glad you found out what the issue is. Hopefully they will be stand-up and take care of you.
Thank you for getting back to us with what it was.
Once they pull it apart and find out WHY the front cylinder is not holding, if you could let us know, that would be appreciated.
@@DKCustomProducts I will let you know. Thank you for your input on the issue, it is highly appreciated.
Just installed the Flo reusable filter and your relocation kit. I have the Jim’s cooling fan and your 1“ tanklift sitting here to get it installed as well to cool the motor down.
@DKCustomProducts got a call today from the dealer and they weren’t able to produce any leak down on the motor. They stated, that they were able to get pressure by rotating the motor in the push rods. They asked which oil I am running and blamed the Amsoil 20-50 syn. I changed now over to redline 20-50 syn. Let’s see how that will work. They want me to monitor the oil every 1k miles, if it’s less than a quart it’s good by HD.
I will proceed with my Feuling cam, cam plate and oil pump change, to see what happens. Other mods in the pipeline: Jim‘s force flow fan, tank lift deluxe, A1 oil pressure gauge, tab performance headers, dynojet target tune, S&S roller rocker arms and maybe the Ultracool oil cooler with fans. I already have the dkcustom deflector wings at the front and a Jesse oil temp gauge.
I am still trying to figure out if I should go with a catch can, but it has to be reversible because of the German TÜV inspection guys.
If i run the hoses up and over the engine instead of down, will the oil collect in the hoses and hinder the breathing of the engine?
No, it is all positive pressure that is pushing through the hoses. It can help if you are having a lot of condensation due to shorter rides and the engine not fully warming up.
This is a good video on what EBS will fit your Air Cleaner and at the 8:28 minute mark Dwayne talks about this subject - th-cam.com/video/XI_FmsiGbBM/w-d-xo.html
Here is another good video where they talk about routing your EBS up and over - th-cam.com/video/XI_FmsiGbBM/w-d-xo.html
Thanks for commenting! MB
@@DKCustomProducts
Thanks. I have an 01' 883 that I'm using the breather bolts on. I'm getting some oil out dripping from them so I may do the catch can.
The catch can or filter system would definitely do better at not getting that oil on your bike.
If you need any help deciding which EBS to get please feel free to contact us;
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting! MB
Can this type of modification be done on a 2021 Honda CB500F? I just got the bike recently, pretty much brand new.
It looks like there is a breather hose with a plug + clamp on the left side of the bike (which I’m assuming works like a catch can), but I don’t know if the bike is designed to recycle the oily hot blow-by gas back into the intake, or dispose of it into the tube.
While we don't know anything specific to your Honda. All engines sold in the USA, including Honda's, must push that hot, oily, oxygen depleted air back into the intake. Hopefully you can identify the route taken to do that and push it into a filter or catch-can.
I want the breather setup without the filter or catch can. Do you offer that?
Yes, give the shop a call or an email and they will fix you up.
Support@DKCustomProducts.com
662-252-8828
Bought it a few weeks ago with the catch can. I opened it up after 2 weeks of riding and the inside started rusting.
On the instructions it does state to coat the inside with some oil to prevent rusting. If you are not getting a lot of oil in your blow by it will be mostly water and without some oil on the internals they will rust.
You can email our customer service at
Support@DKCustomProducts.com
and we can help you with this issue.
I am sorry for any inconvenience!
@@DKCustomProducts Did that, coated it with engine oil.
And it is still rusting?
Please send us an email at Support@DKCustomProducts.com with a picture and we will see if we can help remedy this situation or if you just need new internals sent to you.
I am sorry for any inconvenience this may have caused you!
We appreciate your business and you for letting us know! 👍
Which one is better
Are you joking? If not, and you watched the video, I can only write out here what we said in the video. They both function exactly the same. So on functionality, neither one is better than the other.
If you want to see what was going into your engine, then the Catch-Can is allows you to do that.
Other than that, it is purely a matter of which one YOU like the looks of better.
I have a catch can from y'all i am having an issue with the bandeleros.
Thanks for reaching out. I don't know what a banfoleros is. But if you call or email us, we will help you with whatever your issue is. Support@DKCustomProducts.com or 662-252-8828
@@DKCustomProducts ,I am probably calling them the wrong thing,but,I will call tomorrow.
What is the email address?, I will send a picture prior.
Thanks.
@@kevingleason5434 Support@DKCustomProducts.com
Don't just run a hose! The oily deposit will attract dirt.....My situation: I put a catch can with a filter on, connected to my head breather hose, and clamped it to the left (primary) side front riser of my frame....Okay. When I checked/drained the can after a few hundred miles, there was a good amount of what looked like water, not oil, in the can. I collected it in a container, luckily. But I think this is from heated air that cooled and condensed. Anybody's thoughts?
Condensation is found in the catch can when the weather is cool/cold and/or when there have been a lot of short runs...where the engine did not get to full operating temperature and stay there for a while.
This is because water is a by-product of combustion AND because of the heating and cooling cycles which result in condensation.
When an engine is fully warmed up and runs for 15 minutes or more at full temp, all the water is expelled as steam....otherwise, it collects in the catch-can.
@@DKCustomProducts Thanks for the reply. I appreciate it. My bike is run for a half hour at least because of where I live, and takes a while to warm up. So, yeah, that makes sense. Thanks again.
I have a 2016 dyna switchback with the HO 103, I get some seepage from both breather bolts onto the cylinders, not alot but enough to annoy me. Will this system fix the leaking completely?
Yes, if it is installed per the included instructions it will not seep. Thanks for watching and the comment! 👍
Any downside to running the hoses up above the air cleaner instead of below? I want to route the hose to the other side and going up will be easier. Not sure if the sitting oil there will increase backpressure too much or if it doesnt make a difference.
Great question. The sitting oil does not increase backpressure/reduce performance at all. I run my hoses up and over on 2 of my bikes, and have been doing that for well over 75K miles on these two. Back 10+ years ago I ran them that way on my Sporty for years. The only situation where I would not do that is if the bike was ONLY used for short runs of less than 30 minutes and Never had any longer rides. Here's a link to a photo of one of my bikes where I'm running it up- www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/s/t/stealth_ebs_chrome_2_1.jpg
Here's a photo of a Customers bike where they ran it up and over to the other side to a Catch-Can - www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/s/t/stealth_breather_tc_2.jpg
Another brand had a recall. The crank vent hose had a low spot. Repeated short trips in cold weather could build up condensation. In freezing weather ice could block the crankcase vent, resulting in blown seal that could dump oil onto the rear tire. Recall routed the hose on a continual downhill, so water couldn’t fill in a low spot.
I used to commute on a Road King in the winter, as long as the roads were dry. I’d try to do a longer trip every week or two to let the engine get fully warm, but when I had occasion to take the breather system apart I was shocked at how much water there was…
i just bought the filter one from you for my trike after the rebuild of engine the pistons before rebuild carbon was really bad according to mechanic reason for rebuild on the 2018 flywheel bearings got destroyed reason unknown also oil pump was bad they said only thing they kept was the case for lower and heads everything else gone the only savior was it was under warranty still by some miracle. thanks for the products and videos for helpful tips
Thank you for your business, we appreciate it, and I believe you will be well pleased with the External Breather System. 👍
Glad you got it rebuilt...sorry that happened. Even though he said he does not know why the engine grenaded, it is almost assuredly either from heat or from sumping, or both.
Here is a Report that you may find useful/interesting- www.dkcustomproducts.com/why-how-to-cool-down-the-twin-cam-engine-part-i-dk-cl-tc-dn-1.htm
I had almost the same thing happen to my Twin Cam, over 10 years ago. That is what set us on the R&D to make sure it never reoccurred. The report linked above is the result of over 10 years of study and a couple hundred thousand miles of testing.
Is it normal to see the vapor coming out of the filter element when the bike is at optimum temperature? Thanks
Do you mean oil is misting out of your External Breather System Filter? MB
@@DKCustomProducts yes the external breather system
You can check your oil level to make sure that you do not have too much oil in the bike, that can cause excessive spitting as well.
The catch can does a much better job containing the oil if you have a bike that spits a lot.
Here is a video talking about bikes spitting- th-cam.com/video/EfDeFZblMck/w-d-xo.html
Feel free to contact us for any help that you might won't or need;
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting! 😎 MB
@DKCustomProducts Yes, I just checked the earl and it was on the high side. Thanks for the input
Glad to help! Thank you for commenting! 😎 MB
Which is better a breather system or a vented dip stick other than price?
Well, as you alluded to, the vented dipstick in MUCH more expensive...but what really is ironic is that vented dip stick does not eliminate the Hot, OIly, Oxygen depleted air from going into the combustion chambers, which is a power robber and a longevity issue. Yes, it does reduce it some, but since it does not eliminate it...it is really only something to look at if you have a sumping issue. And if I had a sumping issue I would resolve it at it's source, not put a bandaid on it.
The other reason is if one has a built engine, that for some reason is building excessive Crankcase pressure, that would be a reason to have both a dip stick vent and an EBS.
Thanks , just what I needed to know.
I have a 2020 Heritage Classic with the Screamin’ Eagle Round High-Flow Air Cleaner - Center Bolt which catch can system would fit my bike? I am getting blow by mostly when RPM's are high at highway speeds for longer runs.
If you contact Dwayne by email or phone he will be able to help you out. He will probably need a photo of your set up, or the part number. Depending on which one you have, we have at least one that will fit, possibly a couple. Support@DKCustomProducts.com or 662-420-4891
@@DKCustomProducts Part Number: 29400355
@@jamesgriffin1662 For that Air Cleaner the options are the four that are seen at the link below-
www.dkcustomproducts.com/diy-external-breather-systems-348.htm
Here is a video showing how the install works on these- th-cam.com/video/uAmPC_kglJk/w-d-xo.html
Thank You
👍
not just a harley thing, recently installed a catch can to a yamaha fj1200 after spending hours cleaning that filthy airbox :D
Yeah, it is a problem for a lot of bikes!
I am a new 2021 HD Sportster owner, and do not want to replace the factory air cleaner at this time...but want to put this external breather on. Can it be done? Based on the look/feel of the factory air cleaner, it seems I'd have to drill a hole for the tee/hose to pass through, but am not 100% sure. Thoughts? I plan to order from you guys (would like a black catch can, but am not TOO picky). Much thanks in advance.
What great timing. This weekend we are publishing a video on the installation of an EBS on a stock air cleaner on a Sportster.
It can be done, and works well...yes, one hole needs to be drilled to feed the hose out of the air box.
Perfect, once I watch, I will probably order two (we have two Sportsters)
@@glenndoncer1186 Awesome, thanks man!
Is there anyone that has info on the idea that the original
configuration needs to be under vacume? And useing the breather config makes a free breathing type issue.. dunno? Just askin.
Engines have been running with External Breather Systems for over 100 years. Running an EBS is only going to help your engine run better.
There is no measurable change in crankcase pressure on the original configuration when running and EBS.
I have a 2020 flhxs with a v&h cage fighter air cleaner which option on your web site would work best for me ?
It looks like either one of the following will fit your bike and air cleaner. If you want to find out if there are other options, please email or call. Support@DKCustomProducts.com or 662-420-4891
www.dkcustomproducts.com/twin-cam-discrete-head-breather-system-touring-softail-dyna-dk-tc-brt.htm
www.dkcustomproducts.com/external-breather-system-w-catch-can-harley-twin-cam-dk-tc-brt-cc.htm
Well done.
Thank you! 🏍
Vented transmission cover to relieve pressure and lessen the amount that will make it to the intake in the first place…. Seems like we all should be doing both
Why? Vented Trans still send hot, oily, oxygen depleted air to the intake, so an External Breather System is needed.
If you have an EBS there is 100% of pressure relieved, there is no hot, oily, oxygen depleted air going into the intake, so where is the need for a vented transmission?
btw, the only reason for the dipstick vent or trans vent was because of the bad oil pumps the first few years of the M8. That has been resolved...and if one has an early model M8, it is highly recommended to get the latest oil pump, which alleviates the extra pressure in the crank.
The only time that it makes sense to run a vented dipstick or trans vent, in addition to an EBS, is if one has a highly built M8 with a very aggressive cam, and/or really high compression...reason is that more than the normal amount of pressure will push past the rings into the crank, building excessive pressure.
That said, I know a few guys with built 131's, running an EBS, and running them cool, and they have had zero issues.
@@DKCustomProducts are you certain? That the EBS relieves crack case pressure ? How? It seems to me that the EBS relieves the symptoms, but not the cause.. but you are right it’s for higher built motors. I’m running a woods 22xe on a lowrider st .. so I’m thinking from that reference point
@@drainmonkeys385 That is exactly what the breather bolts do, relieve crankcase pressure. If there were no crankcase pressure, there would be no need for breather bolts.
Here is a video with a diagram of how the crankcase pressure is routed up to the breather bolts.
th-cam.com/video/x61yu0HKW5c/w-d-xo.html
The entire video is useful, but starting at the 1:30 mark is where the manual description of the "crankcase breather system" is shown.
i would vent my pan & shovel wt a filter, never considered my twin-cam, tks.
It really does help...on the M8's too.
Thanks for your comment.
yass umm@@DKCustomProducts
@@DKCustomProducts i checked out DKCustomproducts but got a utube site do u have a # so i can order
@@martinwall7297 You can visit our website at www.dkcustomproducts.com/
where our emails and phone numbers are listed.
You can call 662-252-8828
What about water going into crankcase ?
There is no reason that installing an external breather system would cause water to go into your crankcase. You are rerouting the hot oily oxygen depleted air out of the throttle body into a filter or catch can. 👍
Why not divert the blowby back to the oil reservoir?
Good question. Look at the link below, it is a fairly typical picture of what is being blown out. That is Not something you want to be in your oil circulating around in the engine. Just like it is not good for it to be in the throttle body or combustion chamber.
www.dkcustomproducts.com/media/wysiwyg/Catch-Can_Glop_1.jpg
I'm considering it for my Road Glide but don't want to void the warranty. Will it shorten the engine life if I don't install this breather system?
Technically it could void the HD warranty, but we have never heard of any dealership doing that.
Not using one will reduce power, and cause premature wear in the engine, but it is so gradual that most folks don't notice it.
@@DKCustomProducts i have a 2021 RGS 114. Which system do you recommend? How can I order one?
@@InHimwillitrust I like the premium discrete with a filter. Having a filter or a catch-can (they both provide the bike the same benefit) comes down to a preference, as discussed in the video. Here is a link to them - www.dkcustomproducts.com/all-twin-cam-engines-c76-244.htm
You can order at the above link, or I recommend calling or emailing in and letting them know which air cleaner you have and they can point you to which ones will fit your air cleaner.
Support@DKCustomProducts.com
662-252-8828
@@DKCustomProducts thanks!
@@DKCustomProducts ok thanks sounds good. The the bike need to be tuned after the breather is installed?
does this violate the HD warranty?
It does not.
Here are a couple of videos that you may find useful about HD Warranty-
th-cam.com/video/M-QdwkZ3_RQ/w-d-xo.html
th-cam.com/video/3etb7O62GOA/w-d-xo.html
I have a S&S stealth air cleaner n experiencing some oil visible at cleaner. Do you have parts for this cleaner and route it to catch can?
That system would require modifications using the DIY kits found here...
www.dkcustomproducts.com/diy-external-breather-systems-305.htm
The install procedure can be seen here...
www.dkcustomproducts.com/acl/diy-external-breather-system.htm
Is it same as for cars want to get breather filter
I am sorry, but I do not know if it will be the same for cars. We have not done any testing on cars. I am sorry I can not be better help! Thank you for commenting! 👍 MB
@@DKCustomProducts thank bro
You are most welcome! MB
What is the part number for kit for M8
What bike, what year? You can also call or email the shop and they will be able to help you.
Support@DKCustomProducts.com
662-420-4891
Need a catch can how to order
You can order online, at either of the following links-
www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2352.htm
www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley.htm
or you can call or email at-
Support@DKCustomProducts.com
662-252-8828
I have a HD SE air intake and DK Customs External Breather with Catch Can. The earlier version of your catch can. What’s the improvements with your new version?
If you do not have a real spitter (the oil is not overwhelming your smaller catch-can) then you do not need the newer one. The newer one is larger, so it can hold more between needing to empty it. The newer one is a 4 Stage filtration inside the can. The improved filtration does a MUCH BETTER job at keeping all the oil in the can...this is really important for bikes that have a lot of oil carry-over.
You can see in the photo below that the filtration is made up of 8 individual components, designed to let the air out and keep the oil in. The Catch-Can you have now has just one piece of foam in it.
www.dkcustomproducts.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/c/c/ccdk_apart_6_1.jpg
@@DKCustomProducts thanks. I lost the old foam and replaced it with the breather foam (cut to size) from a b&s lawnmower. It doesn’t seem to capture the oil like the original foam filter. Can that filter setup for the new can be used in the older can.
It’s not a big deal. I just had to clean it more often this summer.
@@h3r63rt You may be able to make it work. Never thought of it, nor did we try. You can see the replacement kit at the link below. You would definitely need to cut it a bit, and not use all 8 pieces, but it seems like it could be adapted and work very well. www.dkcustomproducts.com/4-stage-black-catch-can-for-external-breather-system-ebs-harley-2095.htm
Catch can hose n clamps why you charge so much?
The catch can is a big part of the cost!
Please feel free to reach out with any questions you might have;
Support@DKCustomProducts.com
662-252-8828
Thanks for commenting!
how much will the catch can hold?
More than most bikes spit between oil changes, about 1 ounce, which is more than 99% of the Harley's out there spit between oil changes. We recommend emptying it at every oil change. We do have Customers that have serious oil spitting issues that have to empty the can every 1-2 thousand miles.
Catch can looks sharp.
Thanks! And the Machine Cut one IS sharp! Those fins have cut more than a few fingers when working with it. :)