Ive got a suzuki gs 850g it s a trike iv got a missfire iv the proper air box iv got new coils leads plugs and ive had the carbs supersonic cleanend ive got the air box off atm do you think they need to be tuned would that be the cause of it any help would be great

SOURCE: Which Fuel? 

The owners manual says to use gas with Octane of 90.

SOURCE: Suzuki vs800 intruder dies after about a mile!

Sounds like water in the gas. ALWAYS have a fire extinguisher on hand when working on carburetors.
For each carb > Drain the carburetor. There should be a screw on the lower side or bottom of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Put the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

Please rate this solution. Thanks!

Marvin

• 85242 Answers
• Posted on Aug 04, 2009

SOURCE: 1977 750gs carb sync

carb sync is done using only the carb hard stop adjustment u don't touch the air fuel mixture screw, had this exact same bike had the serive manual am dead sure on this

SOURCE: suzuki gsxr 400 gk76 which ht leads go where from coils

Hi and welcome to FixYa,

Almost always on Suzuki 4 cylinders, the left (when seated) igntion coil supplies cylinders 1 & 4 while the right ignition coil supples 2 & 3.

Good luck and thank you for asking FixYa.

SOURCE: 1983 suzuki gs 750 New airpods and jets. Bike not running right

You are dealing with Suzuki vacuum carbs, you cannot just replace the air box and re-jet. What you are running into is there is no pressure to raise the diaphragm because there is no restriction to create such vacuum. Either put the stock box back on or go to the biggest main jets you can buy. Sometime even when you get stage 3 jets you still have issues. Vacuum carbs are not made to run with no restrictions.....putting aftermarket exhaust on it will make things much worse.