GSX-R 750 Pictures of how I cleaned and adjusted the carburetors on my 1985 1986 1987 Suzuki GSX-R750 motorcycle.

Running like hell. Smells like gas. Won't idle for shnikees. No power at some rpm range. Carbs. Here I go. Getting the carbs out was pretty easy. Figuring out what carbs I had and what all the parts were was a bit of a chore. So in the Carbs pages I will take these apart, clean them, and put them back together. I will look at carburetor removal, pretty easy, Then carb identification, do I have BST31SS or BST36SS? Then some part ID, which is the needle jet and what is the jet needle. Then a tiny bit about what the parts do, does the air screw add air or fuel and which way do I turn it? Then specifics on checking and cleaning the slides and air screws. Then specifics on checking for float leaks and float height adjustment. That's all. Easy. I'll split it up into a few pages, because I will need to take some beer breaks.

But first, lets pay some bills:

  1. Here is my 1986 GSX-R750 with the plastics and tank off (see "Fairings" in menu on left). MY 1986 GSXR-750! Mine! So cool. But I digress. These are the carbs. K&N air filters, carbs, intake, engine head.

  2. When I had enough room under the tank before I got it off, I removed the vacuum tube, left, and the fuel line, right, from the fuel tank petcock. Then I loosened the clamps on all four intake manifold boots. Then I wiggled the gang of carbs free.
    Carb Gang

  3. Getting the throttle cable out was a pain the first time. And the second. I started by unbolting the cable from the carbs with a 10 mm.
    10mm wrench

  4. I pushed the bar that moves the butterflies all the way open.
    Butterfly bar

  5. I wiggled and pushed and twisted and cursed and bled and finally got it out. That is the best picture I could take and the best description I can give. Why should I do all the bleeding around here? I do all the drinking too, so I guess that makes it ok.
    Bleed for it, bitch!

  6. There is the throttle cable. It's just like the carbs on the GS500, just like the brake line on my old Schwinn.
    Throttle cable

  7. There are the intake ports. The oil lines are moldy. Where has this poor bike been that the oil lines are moldy? How to get mold off of oil lines, next on Martha Stewart Living.
    Intake ports

  8. The fuel line was brittle and a huge pain to get on and off. So I replaced it with this fuel line that I bought for the Pathfinder about 5 years ago.
    fuel line

  9. So the carbs are off. I'll take a break. Next I will open them up and see what is inside.

  10. Next I sold out to make 02ยข so I can fulfill my lifelong dream of owning a 1986 944 with blown head gaskets.

    But no minivans!

  11. Then I finished my beer.

All 5 pages dissecting carbs:

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Disclaimer: The technical information in these documents is provided without any warranty whatsoever and at no cost.   All information is in general terms and is not meant to apply to your particular situation, be current at the time you read it, or even be correct in the first place.   Improperly maintained vehicles can lead to serious injury, death, or unavoidable accidents. The author is not responsible for any errors on this site, and does not make any claim at all about the validity, safety, or veracity of the information contained on this website. Any work you choose to do or not to do on your vehicle is done at your own risk. The information on this site is not intended to serve as a replacement for professional advice, professional workmanship, dealer service, union labor, or psychological counseling.   The author disclaims any and all liability directly or indirectly arising from the application or use of any information or idea contained on this or any other web site.   By opening this page, you agree to never sue anyone ever or allow anyone to be sued on your behalf.   The appropriate professional should be consulted regarding your specific condition. does not take responsibility for the information posted on other sites to which it links.

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