41 mm mikuni carb

Joined
Sep 7, 2003
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#1
i have a 41 mm mikuni carb that runs extremly rich to the point it stops running also fuel economy is terrible i have tried almost everything i can .smallest pilot. leanest needle .leanest slide only thing i have not tried is the needle jet would this be the problem .
 
Joined
Oct 20, 2000
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#2
The air screw effects between idle and 1/8 throttle

Pilot jet is between 1/8 & 1/4 throttle

Slide valve is from 1/8 through 1/2 throttle

Needle jet from 1/4 through 3/4 throttle

Main jet is 3/4 to wide open