Yamaha Outboard Carburetor Cleaning | Yamaha 90 Carburetor Rebuild | Boats.net
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- เผยแพร่เมื่อ 13 ก.ค. 2024
- Get a Yamaha carburetor rebuild kit for your B90TLRX: bit.ly/B90TLRX-carb-kit
We’ll show you how to clean the carburetor on your Yamaha outboard in this video from Boats.net. In this video, we’re working with a 1999 Yamaha B90TLRX, so we’re actually working with three carburetors.
See how to remove the carburetor bank on your B90TLRX. We’ll disconnect each of the three carburetors from their separate linkages and electrical connections so that we can get it on the bench. Then, we’ll use a Yamaha outboard carburetor repair kit to replace the parts we need. The kit serves one carburetor, so you’ll need three kits for all three carbs. We’ll clean the jets, inspect the pilot screw, replace the gasket, and then get the carb back together again. Then, we’ll show you how to connect the carburetors together again and re-install the carbs on your Yamaha outboard.
Check out the B90TLRX carburetor diagram here: www.boats.net/catalog/yamaha/...
Read how to do this job step by step: www.boats.net/blog/yamaha/90h...
VIDEO HIGHLIGHTS:
Accessing the carburetors - 1:30
Removing carburetors - 2:00
Disassembling carburetors - 5:50
Removing float bowl - 8:45
Inspecting pilot screw - 13:30
Reassembling carburetor - 14:10
Reconnecting carburetors - 18:00
Reinstalling carburetor bank - 19:15
Find 1999 Yamaha outboard parts here:
www.boats.net/catalog/yamaha/...
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In the video we’re working with a 1999 Yamaha B90TLRX outboard motor, but you may have similar steps for your Yamaha outboard. If you’re not sure whether these steps apply to your motor, leave a comment and we’ll get back to you.
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Greetings from northen Sweden and a fellow mechanic. Video reminds me of a guy in the shop that did what you did now, only it was 4 carburators. He took it apart and mounted it back on the engine, walked back in the shop to get the key and right there on the bench is one jet and a float... Need I tell you it was a friday afternoon.
Clearly explained, excellent video quality! A joy to watch about a task I dread.
Thank you!
Awesome job! Very detailed and thorough. Thanks
Excellent demonstration in breaking down the carbonators .
Found this right after doing it on my own... Oh well turned out great! Super informative video ! very helpful ! I did a rebuild on a 50 hp Yamaha 2 stroke 2003 and the carbs look identical.
Very Instructive Video. Thanks
Great video, thank you for sharing. I will add that a good set of JIS screwdrivers are the proper screwdrivers for Japanese screws. Their phillips and ours are a different shape.
Really liked it ..very nicely explained!
Excellent made video!
I just did mine today it was easy thanks for the video
GREAT PRESENTATION
Great Video professional well done.
This helped me alot, thx!
Awesome job bro
I agree with the comments about checking the float height. Great video but you should not have to press down on the float tang to fit the needle and if someone follows this procedure on older carbs with adjustable float height - then their fuelling will be out across the rev range. You also should balance the carbs against the master carb after cleaning.
Balance the carbs against master carb?
Awesome thanks.....
Great video! Question - Is the process much different on a 1999 4 stroke Yamaha 100HP TXRX?
Should you replace all the fuel lines to avoid future failure?
Job done 👍
🤨 But does it fire right up and ride out
Great Video.... Do you same the same video for a 2008 Yamaha 50tlr rebuild ?
Once the set screen for the main jet was removed did you just take a pic to poke it out ? On my system top carb it falls out but on the bottom it seems to be stuck is there a way to poke it out without damaging anything?
good afternoon, please which initial adjustment of the carburettor air bolts, on yamaha 60 fed thanks
Great video now can you tell me where can I find my pilot Jets and Main jets for my 90 Yamaha engine it seems that boat. Net does not carry them I believe only in a 45 and 65 they had where can I find a poor by 90 or are they all the same
Is there any carb tuning after??
Fantastic video, unfortunately it skipped the part about how to hook up properly the oil linkage... and then said it will cause engine failure if not done... Mine won't go on properly so now I'm stuck on what is the correct way to hook it up.
Would the process be similar for a 96 Yamaha Pro 50?
Would this be same as a 2004 150TRLC?
Looks like you didn’t get that floatseat off properly?? It looks damages. Is it have proper tool at all? I take my Dremel and cut little slice in the middle to get it off!
It would be nice to hear it running after cleaning the carbs. That way I would know how it is supposed to sound.
Supposed to sound like “bwop bwop bwop bwop bwop bwop bwop”
Are these carbs similar to the F90TLRB?
although he is a good tech, why did he not remove the top side of carb and check all the passage ways, idle mixture screw , and check float height, if ur not gonna do it all, let somebody else do it.
Thank you
Bow to your master!
Jared Terman Deez Nuts!!!
What the about link & sync procedure 🤔
i have a motor like that after cleaning carbs it makes squeaking noise and cuts off on low idxle, check the video out its under Roman Nesen
Hello from Russia!
Hello Russia from the USA!
You didn't show how or what the float level was supposed to be ( very important for any carb)
These Floats are non-adjustable - Solid Plastic mount for needle
What's the difference between the 75 and 90 hp models they both have the same carbs intake and power head listed is there a restrictor in the exahust or does the exhaust manifold restrict it
Different jets and timing
Do you ever install the other larger Oring?
It goes on the bolt that screws into the side of the float bowl
50hp yam 2 stroke......is the float parallel to carb body upsidedown?
Why didn’t you replace the large gasket on the top half of the carburetor?
Nice video.. I have the 2008 Yamaha 50 TLR and I just rebuilt the carbs. I had to drill out the brass plugs to get to the pilot screws.. I replaced them with the new ones in the kit but my manual doesn't say what the setting would be for each carb. does anyone know how many turns I should back them out for each carb? Thanks !
What were the old ones set at.
Are you the older brother from Little Sheldon?
Is this the same procedure for a 1988 Yamaha 90 ETLG? I also may need carb parts for this engine, so if anyone can point me in the right direction, thanks.
You pointed out two small O rings one was smaller than the other but what was the thicker small O ring for?
The Thick O ring is for the Drain Plug thats on the carbs.
Thanks guys...I was just sitting here staring at that oring
I have a 1994 Yamaha 2 stroke 70hp engine I rebuilt all 3 carbs and replaced the cdi unit and spark plugs after that I took it out on a fresh water lake and at first it was hard to start, the engine idled fine but when I gave it the throttle it bogged down and shut off I restarted and gave it throttle again as I was taking off it bogged down again, i backed off the throttle then thrust the throttle back and forth until I finally got it past that point of speed but the engine could only push the boat to reach speeds up to 34 mph where before I could go 55 mph plus on my small whaler! It still boggs down everytime I take off? What could be the reason it is running rough like this and not smooth? Could I have possibly bought faulty plugs or do I have a fuel problem?
Float heights set properly during rebuild?… just a suggestion 🤷♂️
What would.cause the engine to just die after running for 10 or 15 minutes we let off the throttle to slow down the engine cuts off ,want start again you have to wait about an hour or so and it will fire up again , then the same thing happens
I have a Yamaha 90 with carb problem "C90TLRZ". Carb is leaking out of one of the vent holes on top of carb while motor is running. I checked the 'needle and seat' which has no pits. Do you have any ideas of the problem? I'm thinking it maybe a heavy 'float' which maybe flooding the carb. Fuel is also leaking out of the passage of the throat of Carb.
I solved my problem, everyone said it was the needle/seat in the carburetor which it could have been. Ordered new needle/seat and float. Well it turned out the new float weighed in at 176 grains, old float weighed in at 425 grains. Changed the float only and problem solved.
I got a 90 horsepower 2005 start up very shut up after a minute
Is Yamaha jets holes smaller than others I just paid a place to fix my 88 pro v and he said the high speed jets holes are very small.
Yes
You can go with a slightly bigger jet. Mostly from a smaller hp Yamaha engine.
What is the purpose of the plug for the pilot jet?
Without that plug the carburetors will flood soon as you crank them up.
Хорошее видео, но вы не бережёте руки, и нет очень важного момента - проверить что поплавки в горизонте.
Разные ремкомплекты карбюраторов дают разные углы работы поплавков.
Приходится подгонять шляпки игл - подбирать или подтачивать.
No float adjustment necessary?
These Floats are non-adjustable - Solid Plastic mount for needle
Where in the heck can I get a 10mm thin wall spent 55 dollars so far
how come you didn't take the top of the carburetor off and see what kind of build up in trash was in it and said just taken out make sure screw there's trash all up in there 90% of the time
Hi
I have 1999 75 hp TLRX model with set of carbs the same like the 90 hp from video.
I’m trying to buy carb kit according to parts manual from boats.net going by serial number and it shows completely different set of carbs.
Do I have wrong set of carbs installed?
Engine is original.
Did Yamaha produced 75 hp with 2 different set of carbs for that year?
Anyone has 1999 75 hp TLRX with set of carbs from 90hp?
Thanks everyone
Same carb just the jets size are different and the timing also
No info abuot the other carb which have different use.
That's not a vacuum line at 4:20 & 19:55, that's actually the fuel enrichment line that sends raw fuel behind the #2 reed valve assembly at startup. Great video otherwise. Very informative.
When he told us to start by removing the cowling...ugh
I disagree, take to the fuel and vacuum hoses with some gusto, if they are at all weak, chuck them. I wouldn't put back hardened or weak hoses, that's something not be fooled with.
Just dump a can of Seafoam in the tank and call it a day....
what about gloves...
To be honest, a lot of times gloves get in the way.
It's a good suggestion though!
Don't b a pussy
Hello from Russia!