Mercury/Yamaha 115hp EFI fuel injector. How to troubleshoot/replace/clean /fix outboard motor.
ฝัง
- เผยแพร่เมื่อ 15 ต.ค. 2024
- Hello and welcome to my channel
Today I take you through a step by step procedure on how to troubleshoot, replace and clean your fuel injector for your outboard engine.
Problem
Earlier this year I had a contamination issue in my built in gas tank and I suspect the debris has made itself through the fuel filters and ultimately clogged one of my fuel injectors.
Prior to replacing my fuel injectors I've replaced the fuel filter, replaced fuel lines from the old grey style with the lining that tends to deteriorate and cause issues overtime and all 4 spark plugs in attempt to solve my throttle/lack of speed issue. Due to lack of speed my boat was unable to plane.
Ultimately I narrowed it down to the fuel injectors. Prior to this I booked an appointment at the marine shop for an inspection on my outboard to solve the problem but there was a 3 week wait time which prompted me to try and solve the problem myself as I'm an avid angler and need to be on the water asap; after all the fish are biting! lol
Amidst research and chats in outboard forums. It was suggested that I may have an issue with my fuel injectors. I then ask a few marine shops for a quote on how much it would be for fuel injectors. I was told $270 per fuel injector on parts alone!
This prompted me even more to try and find another solution. After further research I found the solution and I hope this video will help you solve your problem and at the same time save you time and money. This can also be a great addition to your preventative maintenance as its easy to do and will definitely add more efficiency to your outboard performance
Links
4 pack of fuel filters for Yamaha/Mercury EFI 115
www.amazon.ca/...
Chapters
1:38 How to troubleshoot/test/isolate fuel injectors
3:00 How to replace injectors
13:45 How to meter injectors
16:11 How to clean injectors
I wish you luck and please leave a comment below on any queries regarding the information on this video.
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#diy #mercury #yamaha #boat #howtovideos
Hey thanks for this video. My F115 was running rough with no power at one point this Summer and I had it fixed in no time with your video. And those injectors on Amazon are awesome. They are one hell of a deal for four of them. Now I have three spares in case another one bites the dust. I never suspected a bad injector because the Yamaha software didn't show any problems with the injectors, yet one was completely dead. I just subscribed to your channel for more awesome videos. Good fishing and tight lines!
Wooohoo! Heck ya! I'm glad it worked out for u! 😁
Make sure ur fuel is good and water free. I found that to be the root of all problems with power and engine performance. Also clogs injectors. Yes that amazon deals killer. Still have 3 spares aswell🙂
Right on thanks for the support. I'll keep uploading 👍
@@bbtvfishingismyhappyplace I live on Hornby Island. You have to do your own mechanics or tow the boat off two ferries $$ to get a shop to do it. On another note, the Fall fishing has been killer. Still so many fish around!
@@bigtreeproductions exactly! A runihg boat means less down time and more fishing time! The ocean salmon has slowed but I think it's still worth it to go! Still haven't had that big rain yet.
@@bbtvfishingismyhappyplace Definitely need a bunch of rain. It's scary dry here and fish can't get up the rivers.
@@bigtreeproductions yep same this side. Fish having hard time to get to spawning grounds. Been prawning lately? Want to try again soon
Just ran accross this looking for solutions to an issue im having. Very good step by step in depth video for anyone needing help with these issues. Fine job sir.
Oh man. Thank you so much for that feedback. So glad you found it helpful. It took me quite some time to gather info to solve my problem. I hope this will solve yours with less troubles so you can get back on the water again.
Let me know if it did the trick!
Thanks again for stopping by. If you havent yet please give it a Like, subscribe and a click on the bell icon.
Also take a look at the description section for more details of what else you can do to fix it. Aswell theres a link there to my facebook fishing group. See you there! Tightlines and happy fishing my friend 😊👍🎣🐟🚤
well done, thanks for sharing, $50 for four vs roughly $1000 for four, $250 for one, absolute insanity, hopefully the quality of the cheaper in price ones will not be lacking, its always good when you can do the work yourself, TH-cam has been a great resource for me for boat and engine maintenance, learned how to fix my tilt and trim which had a couple dead orings that wouldnt allow the tilt to move the outboard full up or down , and also learned to troubleshoot low power in my 115 ELPTO 2+2 outboard finding that 2 ignition coils were suspect, same process as you disconnecting the injectors in this video, while the engine is running disconnect the spark plug wires one at a time and when it doesnt change the sound of the motor you've found a faulty one, and replacing them, voila it was like having a brand new outboard again, being able to fix your own stuff instead of getting gouged at the marina or boat store can save you a ton, most of the maintenance stuff is relatively simple, just need sockets and wrenches and a little elbow grease, lastly if you are finding it hard to find seals, orings, etc find an industrial seal company in your city etc and you'll find most of those seals they'll only charge you a nominal fee, basically something like 2-5$, basically a penny cash transaction for them, i use Fluidseal AB, and Hi-Tech Seals, here in Edmonton for example, anyway great stuff keep up the good work
Hi Mike! So far, so good. I know exactly what you mean. If I can work on it, then I will. I simply can't get myself to bring any issues to the service shops knowing I can do it myself. You're definitely right. Most things are achievable with time, effort, and regular tools. The knowledge gained is priceless. Breakdowns or issues come up on the regular in every outting, and that knowledge can be the difference from having a good day or a bad day.
The good thing about those injectors is that I now have spares. They are relatively easy to replace, even in non ideal settings like asea. Ask me how I know? 😅
It's tough times out there economically. We know boating and fishing is an expensive hobby. Preparation is key 🔑 and I simply enjoy tinkering and learning.
There's other maintenance videos that I want to make. Yt is an excellent resource when it comes to this, and it feels great to contribute and help out other boaters.
Thanks for stopping by Mike! Hope you're still fishing, tightlines, and happy boating. 🙂🛠🚤🎣🐟
Saved me hundreds of dollars. Thank you from the seas of Southern Norway 🇧🇻🙏
You're very welcome 😊. Glad my video helped you out. If you haven't yet, please like and subscribe.
I have watcher many a videos on how to clean and replace fuel injectors,and your video was by far THE BEST video i have ever seen.Thank YOU for offering the best advice.
Oh my!! Thank you so much! I appreciate that. I hope it solves your problem. It's still working for me and it saved me a lot of money and headaches. Best of luck and please like and subscribe if you havent yet.😊👍🎣🐟
Watched your video a week ago and today this happened to me. The boat wasn't able to go on a glide. So I was able to troubleshoot it with a fried using the method you have showed on the video and now I know what to do next. Thanks for the video!!!
Awesome! I'm super glad I was able to help😊
I would like to add some info.
In the video, I mentioned that if debris has made it all the way to your injectors (last point of fuel delivery), then you must check your fuel system. From your gas quality, fuel filters, water separator, and high pressure pump (also has a screen filter, also known as VST).
Still, I'm glad you're able to get it up and running and have saved yourself cash and downtime. I've been wanting to make a follow-up video to this fix as I found that hidden filter in the VST unit, which involves in-depth deconstruction to get to it but very easy to do!
I also changed all my fuel lines as I didn't know how old they were and if they were deterioting inside. In short, I meticulously went through the whole fuel system.
Thanks again for the feedback, tightlines and happy boating!!
@@bbtvfishingismyhappyplace No Sand Heads for me today but I have time to fix it and go out again soon. BTW which grade of fuel you use for your motor?
Oh, nice! Wednesday or Thursday, I'll be there.
I use 94 octane chevron for ethanol free.
Recently, that's not the case anymore. I might go back to 87 now if there's no advantage to using 94.
@@bbtvfishingismyhappyplace well hopefully see you there. I'm running Campion Explorer center console usually with 3 roads and in yellow life west. If I'll see you I'll wave my hand :)
Awesome! See u there!
Hi. Cleaned injectors as per video . Worked for me . Motor runs WAY better !! Thanks
Hi Millwright express! That's pretty awesome!!!! Glad to hear it... this might not be the end all.and be all.. you will.still need to resolve why it got clogged... dirt is going through the full fuel system all the way to the injectors which is the tail end of the system...
Have u checked ur vst unit? Also I work hand in hand with millwrights. Just thought I'd mention lol
Well after 20 years they probably needed a good cleaning. I always treated the gas properly , even for storage.
Thanks very much for the video. This is exactly what was wrong with my 115 mercury
Awesome! Have a look at some of my suggestions on previous comments. Thanks for leaving your feedback, glad I was able to help. Good luck and safe boating!🙂 Tighlines!
I also have a mercury 2021 115hp. It lost half of its rpms , could this be the culprit?
Great video, and I have done this procedure the same way....I do have something I'd like to add, and take it as just my 2 cents. The coils in these injectors are fragile and yes they work on 12 volts, however the voltage is regulated from the ECM (usually), NOT straight from the battery. When doing this procedure don't use a full size battery, instead use a simple 9volt or in most cases even a size D flashlight battery (yes, 1.5 volts will be enough to activate the injectors coil). This is MUCH closer to the typical amperage of the circuit. When using a full size battery, you're essentially offering up to 500 to 800 amps of supply current. It is possible to literally melt an injector in your hand. Being that gasoline or cleaners are as flammable this should speak for itself. Again, in no way am I criticising, or correcting your well made video, just offering advice that I personally feel is very valuable to this procedure. Thanks, and tight liines.
Absolutely great tip, Eric! Appreciate the feedback, I'll keep this in mind for my next clean. Luckily, fingers crossed 🤞, I've had no injector issues since woohoo 🙂. Tightlines aswell!
Nice and detailed, hope more people who have this problem come across this video 👍🏾👍🏾👍🏾
Thanks so much for watching and leaving a comment. After I fixed my issue I wanted to make sure to make a video in clear detail on what to do as it took me a bit of time to gather info from difference resources. Hope this helps someone to get back on the water sooner and save some hard earned cash. Still running tip top since then!
Please give me a like, subscribe and a click on the bell icon. Tightlines and happy fishing😊👍🎣🐟🚤
great in-depth tutorial, i'm going to try it myself.
I hope it helps it gets you up and running!
Once you get it going, as I mentioned in the video. There is absolutely something clogging up ur injectors. This will remedy the injectors being clogged but eventually you will have to solve why debris is getting through all the way to the injector which is the last point of delivery.
Regardless this will definitely save u some time and money. Could even save your trip from being ruined. I had this issue mid trip and swapped it on the fly and had a great rest of the day.
Keep ur used ones, clean them and leave on the boat for spares.
Good luck! And hop to see u on the next adventure. Happy boating 😊
@@bbtvfishingismyhappyplace thank you, Ill keep that in mind.
No problemo! Goodluck and please subscribe if u haven't yet. Thanks for stopping by! 👍
Great video. Wish I would have watched before taking to mechanic. This was my problem
Hi, HREC! Thanks for reaching out. Don't get too down on yourself. It's a part of the learning process, and you will now be armed with knowledge in case it happens again.
Besides, now that you're able to run, it doesn't mean it's fully fixed. You'll still need to get to the root of why your injectors fouled.
I had a fuel contamination issue. My fill was taking on water due to poor design. I put the fill on a 4 inch riser and I've had no issue since. Hope that helps. Best of luck and happy boating!
Great job of explaining this system my brother! I can't thank you enough! Seems there is no continuity on one injector of mine..... but it looks like my parts are different than the one you have listed...as my motor is a 2006 Mercury 115 4 stroke 4 cylinder EFI. They don't seem to be available on amazon...so now I'm hunting for one. Thanks again for the help, you got me going in the right direction. Boffa
Is the part number the same??
Amazon has a pretty good return policy and aswell. There is such a thing as partial blockage on those injectors. Even if u do the test and it works, it might not be working at best efficiency. I have a set of injectors on board pre cleaned/new on stand by.
CDH 210. Hard to read but it's on the side of the fuel injector body.
Love your channel bro! please keep making videos! 😂
Thanks, Josh! I appreciate the feedback. I wish I could make more content regularly. Right now, focusing on family duties. I'll keep at it tho, stay tuned 😊
WONDERFUL!!! VERY INFORMATIVE! THANKS!
Hope it helps! Engines still purring on my end🙂
Excellent presentation!!!
Thank u! Passing on the info as it got me in the water and now fishing 😊
Nice and straight to the point!
Very informative!! Well done, sir!
Thanks Frank! Appreciate the feedback. Tightlines and see you on the next video😊
Thank you Sir!! With your excellent walk-through demonstration, I’m going to replace all of the fuel injectors on my Yamaha 115. On another subject, I noticed we have the same boat: G3 V185. I’m struggling to find rod holders that work with the gunnel track system. What brand and type do you use for those gunnel tracks? Thanks, JR
You're very welcome! Glad it helped. Good idea to replace. I'd keep ur removed ones, clean em up and use them as on board spares.
I have a Legend 18xcalibur. I do have a track system but it's for my cover. I use scotty mounts and screw them on my gunnel. I use scotty Orca Rod Holders and powerlock on my downrigger arm. Hope that answers ur question.
Thanks for leaving a comment. Tightlines and happy fishing!🙂
If u enjoy fishing, come join our group! See u there
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Appreciate the video I went to test my old injectors and they’re all reading about 14.5 would you consider that still good even the new Amazon ones are 14.5 although one out of the new box was 12.7 which might be a bad one thanks for your reply.
I'd say those are good. If it tested open continuity then I'd say its no good. That just passes the Coil test. Still need to make sure it's not clogged. Hope that helps! Thanks for watching and leaving a comment. Cheers!
Watching now sir. Just got out from work
Thank you!! 😊
Great video. Thanks! I wonder if the fuel injector on my 9.9 hp Tohatsu is still the problem because sometimes it runs for 30 seconds just fine, then runs rough for a few minutes.
There's contamination on that fuel perhaps. Need to go through everything but a good fuel injector inspection might be in order. Good luck and let me know how you make out. Thanks
My motor also stumbles just of idle. Complete tune up done also.
great video Brennan
Thanks Will! Hope it helps someone out. It took me awhile to find all the info prior to solving the problem. So I hope it makes it easy for the next person. Thanks for stopping by my friend 😊
Awesome tips much appreciated
Thanks for the feedback! Wish u luck and happy boating 😊
Nicely done.
Cheers!
Excellent informative video!
Thanks for watching and leaving a comment! If I'm able to help just one person to get back out on the water sooner then I consider it a winner video!😁
Thanks again and if u haven't yet please like, subscribe and I'll see you on the next adventure!
I’ve had to replace the injectors twice on my Merc 115 - any thoughts on how to prevent this from happening? My boat does not get used very much so I think that’s the problem. Would it help to run all the gas out of the line? Maybe I should install a shutoff valve on the fuel line..?
Hi Roger thanks for watching and leaving a comment.
Unfortunately, infrequent use will cause fuel separation. Hence water and oxidation and other not so pleasant results for your outboard.
Now to prevent breakdown issues
1-add additives like mercury quick clean to your fuel. I've also read to leave the tank as full as possible to prevent excessive moisture
2- change fuel filters often
3- keep your used fuel injector spares, clean them and have them ready for swaps (makes it cheaper rather than going to the mechanic)
4- recirculate your fuel with an external fuel pump and add inline filters to filter debris
5- if leaving unused for an excessive amount of time perhaps empty the tank into a jerry can and use the gas for your vehicle or add additives to prevent separation.
6- join facebook outboard repair groups to ask for more ideas
7- use premium ethanol free gas
8-empty out and replace fuel water separators as required
I know Its a lot but it's the price we pay as boaters I suppose. These are just a few suggestions and I'm sure there will more I've missed. Tip #6 is most suggested.
Here's the link. Theres 39k members there so there will be lots of help available there for you.
facebook.com/groups/940259685987841/?ref=share
I hope this helps. Also if you havent yet please give me a LIKE, SUBSCRIBE and a click on the BELL ICON to be notified of future videos.
Best of luck to you, tightlines and happy boating 😊
use fuel stabilizer in your tank if youre not using it much
Hello from denmark. I have the same motor on my boat. In neutral there is som kind of bering noice from gearbox. But when i put it in gear it stops. Do you know anything about that.?
Hello Morten from Denmark!
Sorry, but not sure of that issue. Where is the noise coming from? I know there's an adjustment on bottom leg shaft that links to the power head. Perhaps you can adjust that? You might have to remove your lower leg to access it. Perhaps it's not a bearing, but you're partially engaged in gear and just need an adjustment?
Great job! Thank you!
Worked for me and still cruising well!😊
You should do your timing belt and check the idler tension periodically. Belts should be done every 5 years or 1000 hrs , which ever comes first.
Sure thing! Wish I knew how many hours the previous owners put in. This years model had no capability to plug in a computer. Guess that's on my to-do list.
Thanks for the video. I need four 877826 injectors for my 03 Mercury60hp…but eBay is loaded with aftermarket injectors anywhere from $15-$40. I’m overwhelmed and don’t know which to select. Any thoughts to help me out here?
Is that the actual part number? Can always call a marine shope and ask for the part number then u can scout where is cheaper.
Can always do a clean like I showed in the vid. Might just be plugged up then their basically new again.
For peace of mind I suppose a new one is best but as shown in the vid even if it's new it could still be defective.
I got these from amazon as the quotes are unbelievably expensive at the marine shop so perhaps try there. Aswell these injectors would be the same for auto parts. That being said there could be the same injector for a car and can just get the injectors from them (click on the amazon link and you will see its prompted as the same for some cars). I hope that helps
Please give me a like and subscribe when u get a chance and join our fishing group! Link in the description section. Tightlines Hiken Mikes!
@@bbtvfishingismyhappyplace …yes, that’s the number given to me by the mechanic that’s going to install them for me. He’s doing the work on the side, so I’m responsible for getting the parts. Thanks for responding 👍🏼😀
Ah ic. Ok well I wish u luck! Definitely clean and test the old ones and keep as spares then. 😊
@@bbtvfishingismyhappyplace will do👍🏼
I hear a very slight clicking on two of my injectors and no fluid is coming out. The other two injectors are clicking much louder and spraying a good pattern. They all ohm out the same around 12.8-13. Could two be bad?
Coil looks good, sounds like it's clogged! Buy a other set, install it. Clean the originals and use as spares. Good luck Preston! Let me know how you do
@@bbtvfishingismyhappyplaceyour video was a big help. I’m a little stumped I got each of the injectors to spray one time only and now they won’t click at all with a battery. Other two are perfect and back in the boat! Wondering what I should do with the two I suspect are faulty
@PrestonBrungard I recommend to keep the 2 used ones as spares and install brand new ones. For how much they cost and the hassle on the water, you might aswell.
@@PrestonBrungard check out the description section for links on fuel injectors. Good luck 👍
very good video
Thank you! 🙏
Great video, but sometimes it's not the injector, electrical could be the problem no power coming to plug in or wiring harness, find an injector that works and replace, if not working, there is no power
Yep! You're absolutely right. That's a possible issue as well. Though, I feel that in most cases, it's a dirty fuel issue. Great tip Thomas!
I have the same motor with what seems like a rough idle. First time I took the boat out it got on plane once with no issue then acted as though it was starving for fuel. I went through the entire fuel system including testing and cleaning fuel injectors. Checked and adjusted tps sensor also no difference. Ideas?
Yes, I do! You need to check ur Vst! There's a filter in there that can get clogged.
Like I mentioned in the video if your injectors are clogged it basically means your fuel was contaminated at one point. Somewhere in your fuel path, debris will accumulated.
Have to remove the manifold to access it but once u open it up you will a float and a fuel pump. Under the fuel pump there's a screen filter that you clear. It basically starves your motor st high demand but fine at lower demand.
I would check there! Let me know how u make out. Was intending to make a video about it but didn't want to take the whole thing apart to repeat the process. There are YT videos out there tho! Good luck 👍
@@bbtvfishingismyhappyplace that’s what I was saying it’s all been through only thing I found was just a little bit of blockage on the high pressure pump filter the rest of the fuel system was spotless. I drained all the fuel that I emptied through coffee filters and found nothing.
@@bbtvfishingismyhappyplace I’m going to put it in the water again to test for power but the idle is still crappy. Lift pump is pumping great also. No difference running from a separate tank bypassing filter housings no change in idle or off idle stumble.
Are those new fuel injectors?
Maybe they're not getting a signal, or the coil in them are no good. There is also such a thing as partial blockage on those fuel injectors. They may keep engine running, but idle will be more rough.
Do u have proper fuel pressure? There's a fuel guage u can attach to the rack that holds the fuel injectors. Looks like fitting for tires.
Are your lines all tight? I've also changed all my hoses to the black ones.
Sorry I keep editing it. Darn auto spell
@@bbtvfishingismyhappyplace yeah I cleaned the injectors they patterned good. I have not checked the pressure at the rail under laid but I have out of the water and was fine. I’m fairly familiar with outboards just don’t have any equipment to test modules or sensors.
Thank you!!!
Hope it helps! Thanks for watching😊
Thanks for the video!
Hope it helped you out!😀 good luck!
Boss paano iadjust ang minor ng motor na fi? Your new subs sir. Keep safe
Hey thanks for watching kuya. Not sure what u mean by "minor".
By no means I'm an expert but this problem I know I solved and wanted to share my solution to help ppl with the same issues in the future.
Elaborate your problem and I will do my best to help😊
👍
Good luck and happy boating 😎