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air pilot screw in-op

97lowrider

New Member
Am tuning 42 mikuni starting air pilot turned out 2 turns from settled position. From there I was able to get bike to idle. However, the idle was rough due to air leak on carb. Fixed the leak with new gasket also disassembled and clean carb. Reassembled put back on bike. This time when setting the idle. The air pilot had no effect on idle. I could go from all the way open to closed and didn't any effect on the idle. Need help thanks
 
From the Mikuni tuning manual :
" If the engine speed does not slow after
two-and-a-half turns out, the pilot jet is
too large and should be exchanged for a
smaller one."
Make sure your engine is up to full operating temp. A fan directed at the engine is recommended.
 
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