Suzuki gs1000s Mikuni carb settings

[Guest]

Moved fuel screw and air screw during clean up,manuals say do not adjust any ideas of a starting point.

[OldVet66]

It would depend on the year of the bike and type of carburetor. Suzuki changed from VM carburetors to CV carburetors in 1980. If it is the VM carburetors the pilot adjust needles ( at the front center rim of the float bowl) would be from lightly seated 1/2 to 3/4 turns out since you said they shouldn't be adjusted. Those were painted over at the factory. You want them far enough out that you don't get a lean stumble at town speeds with the throttle barely cracked opened. I'm running a Dynojet stage 3 jet kit with the largest jets. I started at 1/2 and got rid of the stumble by tweaking them out about about another 1/8th of a turn. You set the air adjusts for highest idle. Both adjustments affect each other slightly so there may be some air adjustments after changing the pilot settings. If they are CV carburetors, I have very little experience with them. Make sure you soak them in carburetor dip for 24 hours after dissembling the rack or you are wasting your time. there are very good rebuild tutorials on: (http://members.dslextreme.com/users/bikecliff/). You will find the factory manuals and supplements for the "S" in the center column. Very reasonable O-rings here: (http://www.cycleorings.com/) The only other thing you will need for a rebuild are gaskets.

[Joemac]

They are mv carbs thanks for the help

[tom203]

They are mv carbs thanks for the help

So VM carbs... surf thru Basscliff's website and find....

http://members.dslextreme.com/users/bikecliff/images/vm_carb_rebuild.pdf

[GregT]

Depends exactly which 1000S type of carb you have. The VM30SS on the ST has more in common with the 29mm smoothbore Mikunis than the 26mm VM's.

From memory, the last time I set these up, I started with around 1 1/2 turns on the idle mixture screws and 1 turn on the air screws.