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Jetting specs

Discussion in 'Fuel' started by Justin Friedl, Jun 29, 2015.

  1. Justin Friedl

    Justin Friedl Noob

    I have a 2006 WR450f with a FMF Powercore 4 slip on exhaust on it. The bike is running lean right now and backfires on deceleration. I know I need to up the jets to richen the fuel. I am about to do the air box mod to the bike to draw more air in. Just wondering if anyone knows what size jets I should put in the bike to save me time. I live in Cleveland Ohio where elevation is 500-1000 ft. Thanks
    Last edited: Jun 29, 2015

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