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air fuel screw
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  1. General SuperMoto Chat
    Bike: 05 DRZ SM (3x3, full yoshi, jetted, iridium plug, bunch more visual mods) So here is an interesting question, could I have messed up anything if I rode without an air fuel screw? So here is the back story behind my question: Out of the blue I started getting terrible gas mileage 37mpg...
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