TOPIC:

i have my 81 kz650 csr with mikuni carbs that have the accelerator pump. i cannot for the life of me get these air fuel mixture screws set right. i started the adjustments with all screws 1 turn out. i recently dissasembled them and cleaned them also set the slides at a 1mm gap from the carburetor bore like the manual said well used a guitar string that was .9 i cannot find the factory setting anywhere and i had tried to adjust them before i cleaned them so the settings i had were super wonky. also any tips on how to set it exactly? like just do one carb then the next? and what exactly am i looking/ listening for?

If not recorded during the carb disassemble, 1 1/4 - 1 3/4 turns out is a good starting Point.

I just rebuilt carbs on my bike, the air screws were 1/4 turn out from bottom, as in screw them all the way in and back off 1/4. Pretty sure this is close to factory setting, as my spare set of carbs still had the plug cover installed and were set at the same depth (1/4 turn out from bottom).

Good luck!