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Old 10-05-2021, 10:44 PM   #2
slonomo
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Yamaha
 
Join Date: Oct 2009
Location: Medina, Ohio (NEOHIO)
Posts: 11,436
Default Re: Yamaha g8 low engine rpm till warms up

Low speed circuit mixture might be off. If there's a screw on the side of the carb that's the idle air jet. Spin it all the way in (gently) and count how many turns it takes to bottom out. Be careful not to apply force when it bottoms out or you might damage the jet, just "finger tight" as they say.
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