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01 yz426 high idle

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my 01 426 is wanting to high idle all of the time......if lug the motor down at a stop it will idle normally, as soon as you blip the throttle it will return back to a high idle.....?...any ideas?....everything is all stock on the bike....

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A hanging idle is a sign of a lean condition at idle. Maybe a partial plug of a pilot jet? It wouldn't take much.

Have you tried turning the fuel screw out 1/4 turn?

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You probably need a bigger pilot or new( go up 2-3 sizes from stock) and turn down idle scew ( not polo screw ).... Fin tun pilot after this...

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