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I'm just wondering how many turns out should my idle screw be on a 2011 yz 250f
 

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Administrator "Loose Nut" - From Houston, Texas
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Idle screw or PMS screw? Idle screw is not a set amount out, use tach to set idle speed. For the PMS (pilot mixture screw) lightly seat all the way in, 2.25 to 2.5 turns out is usually close, depending on any intake or exhaust mods.
 
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