RPS Hawk 250 oil cooler and other mods
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- เผยแพร่เมื่อ 15 พ.ค. 2017
- These are some of the mods I have done on my RPS Hawk 250.
If you need help on any of theses mods there are lots of members just waiting to help at chinariders.net
Link for Mods.
Links to mods below.
Imentha 14 sets 1-6 Pin Car... amzn.to/470e02z
IWISS Weather Pack Crimper Tools...amzn.to/3tPonIc
Front Brake pads amzn.to/45HLamv
Battery amzn.to/4099vAB
Exhaust gasket amzn.to/45IUhTW
17 Tooth Sprocket amzn.to/3Q9LlkL
Tool tube amzn.to/40amT7O
Rear Tire Tube amzn.to/46ETUuV
40 tooth rear sprocket amzn.to/46Fi20M
Exhaust amzn.to/45CKlM1
Suggested Carburetor PE28FL amzn.to/473bVTy
Get $50 off order from www.venommotorsportsusa.com/ with PROMO CODE: JerryHawk250
DISCLAIMER - I am not paid or endorsed by anyone mentioned in the video. I do believe in spreading the word on good products and dealers to help the consumer. I do not claim to be a mechanic. If you decide to do any mods that I have done it will be at your own risk and I will not be held liable. Also all content is my opinions only and not considered as advice, please do your own research.
The reuse of this video without written permission of the owner is not allowed.
You should do a video explaing more about the oil cooler
Looks cool
Thanks
Wow nice upgrades.
John Smith thanks, I've done more since I made this video. Time to make another one.
Sweet! I had no idea you could install an oil cooler on these little 250s.
Yes you sure can. It really extends the oil and engine life.
@@JerryHawk250 Sweet!
Link to oil cooler?
Link for that key setup to? How does if work?
@@jefferyhaynes2374 Link to the oil cooler is in the description
Great video, thanks for sharing.
Hawk 250 thanks
Did u put oil through the cooler before you hooked it up
Does it matter if it lays vertical or horizontal?
Looks great!
Thanks
Please make a video on how you installed the remote start I would love to do that to mine but I can’t find any information on how to install the remote start on the hawk
wow, great work on those mods...my buddy pre-ordered a hawk should be here in a few weeks, I may have to mod it up for him a bit lol
Thanks, These bike are great to tinker around with. The fun part is building and customizing the bike to your liking.
Yea I hear you, I just got a 125cc chinese pit bike a month ago and have been modifying it and the thing is such a blast, cant wait to see what a 250cc is like
The Hawk 250 is a good solid bike. Lots of torque on the low end. Can't go wrong for the money. What do you have?
Check out my videos, I just got a 2017 Coolster 214fc 125cc mid size pit bike as a bike to learn to ride on for my 1st one
I checked out the video. Nice bike and mods.
nice work on all the mods, love the windshield.
MinnesotaHawk thanks
JerryHawk250 where did you get the windscreen?
I refer to your blogs at ChinaRiders. Thought I would check you on YT. With the 17/40 sprocket set; Do you find the stock clutch/springs working hard on take off or just take it easier?
I don't on my Hawk.
@@JerryHawk250 its a BIG difference between the stock 15/50 and 17/45 sprocket set-up. I was checking what others do.
tasteful
Thanks
And I was thinking of putting a fan on the oil cooler would that be a possibility or would it be parasitic To the battery
You could but don't think it's needed.
I wonder if this would fit the Templar 250 dirtbike. Is the engine noticeably cooler?
Yes you can install a oil cooler on a Templar. It will keep the oil cooler and prevent the oil from breaking down.
did you have to do any customizing for the oil cooler I just ordered a hawk yesterday
Only part I had to make was the angle iron bracket to hold to cooler. I used a piece of the 1" angle from the create the Hawk came in. Other than that everything just bolted right up.
how did you get the remote start to work without having a key in the ignition? everytime i do the remote start it just cranks. but cranks right on with the key in the on position
Check your wiring. Make sure you have orange (or brown) wire is powering the right side of the ignition switch. That wire bypasses the switch.
having the same problem, tried every wire possible in my ignition harness and each side, I went through several fuses lol, still havent found the wire powering everything to allow me to actually start the bike, please explain how you wired the orange (or brown) in detail, please
Pls show how you did the radiator
I have a full write-up on chinariders forum.
Thanks you
I want to do food delivery on a stock hawk 250 with a radiator, how long can I drive if I set the cooler like yours?
The coolers would work great for that application. They will keep the oil temps down.
Should I do new exhaust or new carb first
I would do the carburetor first. The stock jet will be too lean with the new exhaust. You don't have to buy a new carb. Just rejet the stock carb.
Cool make more videos! I'm debating on purchasing one of these. Was it easy to register?
TheAquariumChannel in Louisiana it was easy. each state is different.
Question... Because you have the cooler mounted on the side. Dose the all the oil drain back into the crank?...
No, the placement of my inlet and outlet at the tops of the cooler prevent the cooler from draining back to the base.
What sprocket set up would you need for a little more acceleration but not loose too much top speed ? Thanks 👌🏻
Jamie Cole what are you running now?
Hey man could you PLEASE PLEASE help me with hooking up the remote start system on the hawk 250 I can’t find anyone that knows how to do it and I can’t figure anything out online everyone on Chinariders is just telling me to not do it that it sucks but I am hardheaded and I am going to do it and learn the hard way lol
Yes, I read your post. I disconnected the remote start option not long after I installed it. I only used it a few times and was more of a pain if I wanted to start with the key. If I can find the original instructions I'll post them on chinariders.
I know this video is old and I’m hoping you can answer me because I can’t find known how much oil do I put is it the same amount of oil that’s in the engine already or do I have to put extra to account for the traveling distanc Thank you
It takes about 4 more oz
can you post a link where you got the remote start/alarm? ive done research and i always come out empty
Here you go www.amazon.com/gp/product/B015OHXMD0/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Dumb question how much oil goes in the oil cooler plus the bike? Do you fill the oil cooler and the lines up plus the bike or just the bike?
With the cooler it takes around 1 quart 4 oz. Fill the cooler with the syringe provided with the cooler before connecting the hoses. After running the engine recheck the oil level and add oil if needed.
So do you have to run more oil in it? Amazing mods btw
Roughly 4 oz more.
@@JerryHawk250 great thanks!
For 227.00 on Aliexpress has under efi pz30,
One in upper right hand corner can order for loncin
Zongshen 167fmm engine 250 the .......new 250........
Fuel injection
Nice upgrades. With your gearing set up, what are some of the speeds that you get?
Warren Salter I have done over 75 mph with the 17/40 sprockets . But my Hawk isn't completely stock. I have ported , polished and decked the head to bump up the compression ratio to 10:1 since i made this video. I've also swapped out the carb to a Heihin PWK 30 carburetor with the power jet to compensate for the free flowing head and exhaust. The stock pz30 was too restrictive.
@@JerryHawk250 I have the Bashan, which is the same or similar engine. I will have to try that sprocket ratio.
If you find the 17/40 to tall a gear ratio, You can always swap out the front sprocket to a 16 or 15 tooth. I swap out to the 15 when I go off road trail riding. 16 tooth is good in-between for light off road and highway.
Thanks so much for the help and reply!
@@JerryHawk250 how did you increase the compression ratio please ?
How does the oil move through the oil cooler? Is it with a oil pump or just by like pressure or something?
It uses the engines oil pump.
I ended up getting the alarm but we're can I go to get the flip key cut to my original key
the jakes homboy the key that comes with the remote is about a quarter of an inch to short. I had another key cut at one of my local hardware stores. I had a hard time finding one long enough. Another option would be to cut your spare key about a quarter of an inch longer than the blank that comes with the remote. You could also order a blank key from CSC motorcycle for the TT250 which uses the same key as the HAWK and have it cut at any place that makes keys.
So help me out here, the remote key is useless?
Also how is that oil cooler working out for you
the jakes homboy the key can be removed and replaced. It is too short to work with the hawk.
the jakes homboy the oil cooler works great.
hello Jerry, thanks for sharing this video, that oil cooler looks great. do you know of any other place in united states where i can buy one. i searched on ebay and amazon but they don`t have it.
Ivan El Barra email Matt hawkclusters@gmail.com he has them.
The cooler is good even though it says 125cc??
Yes, it's for CG125, Cg150, CG200 and CG250.
What’s the dimensions of the oil cooler
I'll see if I can get that for you.
It's 85mm x 200mm here's a link to the oil cooler. Use the Type A cooler. www.aliexpress.com/item/1974582999.html?dp=4343338b7d8758c4287df84144d60f4d&af=240682&cv=47843&afref=http%253A%252F%252Fchinariders.net%252Fshowthread.php%253Ft%253D20853&mall_affr=pr3&aff_platform=aaf&cpt=1523273180426&sk=VnYZvQVf&aff_trace_key=2938c8094d4a467f9b2991dc60734851-1523273180426-07467-VnYZvQVf&terminal_id=c5e5d822c9f64231b8a1554e1c417690
how does the oil cooler pump the oil,and is it worth installing temp wise?
It utilizes the oil pump on the engine. The oil cooler will increase to oils lifespan as it will prevent the oil from breaking down from extreme heat. This will help extend the engine life too. I have two cooler installed due to the increased compression ratio from the porting and decking of the head I did.
With the sprocket change what is the top speed now?
with the 17/40 my top speed is 75mph
Jerry, did you buy the 80ml or 110ml capacity oil cooler? Also I see the cooler you linked under your X22r video says it fits the CG engine too... So which do you recommend on the Hawk? Thanks!
-Deckard Cain on Chinariders.net
I would go with the 125 ml like I did on the X22R. I think Megadan has a thread on the install. You will have to shim the rear bolts with a couple of washers on the fender to get the clearance.
JerryHawk250 awesome, thanks! I'll check Dan's post too. Ordering the one you used on the X22r from Amazon wlis preferable; won't have to wait til 2045 to get it!
😆 true.
Will this oil cooler fit on a Apollo 250cc ?
Yes.
JerryHawk250 okay thanks for the reply I never ordered from Ali before but now I can trust it
It's safe. I've ordered a few things on there with no issue's.
Where you get the remote start
Got it from Amazon but I don't have the remote start hooked up any more. It's more of a PITA than anything. I use it for the alarm only which works great. www.amazon.com/gp/product/B015OHXMD0/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
Hey Jerryhawk, I'm up around natchitoches Louisiana, what all did you have to do DMV wise to get it plated? Alot of people said I may have trouble when they go to find the name of the manufacturer in their system
I had no problems getting it registered. I went to one of the local notary / title shops and avoided the DMV. lol First make sure the MCO states "Motorcycle" ( you can request this from where you buying it from) 2nd the MCO and BOL must be notarized. 3rd you will need the Odometer disclosure statement. 4th have Proof of Insurance. I got my bike from APSCUSA.com and Don sent all three in perfect order. The bike will be listed as a "HAOSEN'' with the DMV. It took me less the 15 minutes to get it registered and tagged. Like I said avoid the DMV and go to one of the Notary/title shops. Those people want your money and will make sure it goes through.
One more question Jerry, any suggestions on who to insure it?
@@JerryHawk250 mine was listed as RPS in the NC system.
I got mine through Geico. At the time I bought my bike Allstate would not insure it because it wasn't in there system but now it is but much more than Geico.
When you removed original oil screen cap did you replace spring and leave screen out?
If you are talking about the oil cooler installation you will have to remove the existing spring and screen. The oil cooler kit relocates the oil screen. Make sure not to remove the rubber seal on the adapter. The oil cooler will not work without it.
@@JerryHawk250 thank you
Did you use the blue piece that comes with the oil cooler when installing the oil sandwich plate in the motor?
Yes, that part has to be installed to make a seal.
Is there a place to clip in the alarm system like on a lot of chinese scooters or did you wire it some other way?
Saif Said I had to hard wire it. If you are installing it just for the alarm it's just a few wires. Pretty straightforward wiring. The remote start get more involved. Personally I don't use the remote start. I got it mostly for the alarm.
Hey jerry did you prep the oil cooler first? Can u explain how u installed the steps
Not sure by what you mean as far as prep. It's a pretty simple install. Remove the oil screen cap and screen. Install the adapter and connect all the lines. I used an aluminum 1"x1"x1/8" angle to mount the cooler and attached the angle to the front engine mount bolts.
Do you recall the size oil cooler you got? There seem to be multiple option on your link. Do you have to add a proportionate amount of oil when you install to cooler - for example if I got the 110 ml cooler, would so have to add 110 ml of oil to my overall capacity?
110 ml. yes you need an additional 110 ml
@@JerryHawk250 Thank you! How did you feel about the quality of the filter? I’ve heard of a couple people having issues with metal shavings in their filters. Notice anything like that?
@@dirtbikeTIMES I've had no problem with the filters. They are just a screen filter. The metal shavings are probably from the cooler it's self. The screen filter will catch them. You could try flushing the cooler out before instaling.
Did you up grade the chain or did you use the one you had? If so what size of chain did u use?
I used the stock chain for about 2500 miles then upgraded to an oring chain.
How did you mend the windshield ? Also was the oil cooler for a 250?
Shane Hilton I used a propane torch to heat and bend the windshield . The oil cooler is for the CG250.
Could you go into a little detail about removing the cat considering doing the same on my 2016 hawk
Check out my thread on Chinariders.net about it for more details. chinariders.net/showthread.php?t=17913&page=3
what is you long term opinion of the oil cooler? would you do it again?
It's well worth it especially if you do off road riding. The clutch.will run much cooler and oil last much longer.Yes I would do it again.
@@JerryHawk250 nice, I will look into getting one soon.
What do you use the suringe for?...
To fill the oil cooler before attaching the last oil line.
@@JerryHawk250 thank you...
Sub to channel just bought my son a hawk im thinking about getting me one to. Ride safe
Get one. I'm enjoying the hell out of mine.
17front 40 rear?
Yes, I use the 17 for the street and I swap the front out to the 15 tooth when I go off road.
@@JerryHawk250 Same here. I also got a 16 to get some middle ground between the two as well.
I'm about to do a 17/40 sprocket change. I got a 124 link chain. Is that how many links you have in your chain?
you will need a 128 link chain.
@@JerryHawk250 I actually used a 124 link. It worked but I have the adjustment literally ALL the way forward. Rode it for a few weeks and I just changed it over to a 16/40 sprocket. I live in the mountains and couldn't maintain speed going uphill with the 17. It was a lot faster though. On a flat road it wasn't much of an issue. Still plenty fast with the 16 but I can maintain speed and not bog down going uphill.
How did u mount the oil cooler to the engine? Was it hard and can you still change the oil from where you mounted it
JerryHawk250
I used 1"x1"x1/8" aluminum angle to make a bracket and used the lower motor mount bolts to attach to frame. I wasn't hard to install. It connects where your existing oil screen is located. The oil screen is relocated in line for easy access for cleaning. The oil is drained from the oil plug on the bottom of the engine.
JerryHawk250 does it make a huge difference? Or is it okay without since it's only a 250
It will make a difference. Oil runs cooler so it doesn't break down as quick and engine runs cooler. I can go 1,000 miles between oil changes and oil will not turn black. Before the oil cooler the oil would be black at 500 miles. If you live in a hot climate it is definitely worth it. I added a 2nd cooler a few months back. I'll be posting another video soon.
@@JerryHawk250 so a few months back changing the oil from the bottom I busted one of the threads had a small leak so I had to seal it up with copper ring and some gasket sealer hasn't leaked since anyway was on the verge of buying it today was wondering since I currently have to change my oil from the side can I still do that if the oil cooler is attached there?
What did you set your fuel mix screw to ?
1 1/2 turns.
@@JerryHawk250 Same. I have the 115 main jet and aftermarket exhaust.
Do u know if this would work for. Tbr7?
Yes it would.
Thank you
did you port and polish engine?
Yes I ported , polished and decked the head 1mm
@@JerryHawk250 hey did you know about the new h2 clone thats coming out has 6 gears all hendi video but you can hear them say "6speed!" ….I just found out we might be able.. just maybe...tear the gear box open and add 1 gear we are missing on the cg250 …#6gear ill send video links if ya like.... one hell of a daunting project thoe
What size is the cooler sir? 65ml or Bigger?
I have two 65ml, One on each side. You will see that in one of my later videos.
Any noticeable difference sir?
I really appreciate it man thank you so much
@@dylansaucida5990 Yes, Oil and engine temps are much cooler, the oil life span is increased. I can now go about 1500+ miles between oil changes.
Do u still have the bike? Hiw has it treated u miles on it?
Sure do. I have around 5600 mile on it and still running strong.
Check my latest video to see how she runs.
I want to know how you people I keep seeing on TH-cam are managing that high of a ratio with the Hoas Hawk 250's low assed horsepower. I own a 2015 and have been following chinariders forums and people like yourself and Motocheez on TH-cam. I have done all the recommended mods and upgrades (not counting the oil-cooler But I just found it so no pressure, right?) with aftermarket parts and yet mine fails to preform with the sporty more powerful vigor as shown on the videos. I tried new front sprocket making mine 17/50 first and it was better so i bought me a 45t rear and tried that. It was a total blast of speed....if I had a 60mph tail wind going down hill. On a strait stretch my RPM was much lower but at the cost of top speed being 55 period instead of the 55-60 with the 17/50 and my engine running little faster. 17/45 was worse in all as it saved a little gas but my bike could not reach any measure of speed due to not enough HP top out in fifth gear. You people must have one up on me in tricks. Better fuel maybe or have never seen hills like mine on the roads you commute and-or ride with your Hawks. 15/45 is what I run now an it's working best for me. Top end at 55-63 with power enough to pull hills and open her up on the few flats I have.
I was like you when I first got my bike. I was how the hell are they going that fast. lol Once the engine was broke in after about 6-800 miles I did all the mods to the carb, exhaust and sprocket changes (currently running 16/40). After that It made a huge difference in power. A lot of other things come into play. I'm at sea level 9-10'. If your at higher elevations you will loose HP. Valve adjustment is real important too. If the valves are set too tight you will loose compression which = lost HP. Proper jetting for higher altitudes. Have you done a compression test? You may have other issues. If the engine wasn't broke in properly the rings may not have seated properly or valves may not be seated properly. I don't think there is a HP difference between the 2015 and 2016's. Do you still have the stock speedometer? They are known for being inaccurate 5-10 mph. You may be going faster that you think. Just throwing some ideas out there. Do a compression check and see what you have.
What's your top speed with your gearing 17/40 and do you have plenty of power in 5th gear?
I purchased a Hawk about 3 weeks ago. I currently have 15/45 and get around 60MPH top speed. Have mod stock carb with 115 main jet, shimmed the needle with four 3mm washers and adjusted valves. Replaced shift lever and cluster and spark plug.
The fastest I have gotten with the 17/40 was 72 mph and I have gotten 74 mph one time on the 15/40 combo. The 15/40 combo is a good all round setup for on and off road. It still has a good bit of low end power. The 17/40 is good for hwy and can cruise 60-65 all day. It's okay for off road if on flat land. but It will loose a little of low end grunt. The front sprocket is a easy and quick change out if you going off road. I like the 17/40 for hwy.
hey could you tell me what size chain you used for the 15 40 combo? I just ordered my first Hawk and it should be here in about a week. Thanks!
428 - 128 link chain
Logan Jackson , Jerryhawk250 already replied and I agree. I have 15 45 combo and use 428 130 and my rear wheel is almost all the way back. 428 128 should work.
Thanks guys! So if I used a 428 -128 link it would still have the necessary slack for it to stretch when I sit on it? Ive read a lot of guys saying that the chain stretches when you put your weight on the bike because of the suspension so to leave a little bit of slack when no weight on the bike.