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hmf exhaust
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  1. XC Engine/Carb/Drivetrain
    I purchased a 450 xc the other day and noticed a bog in lower rpm range. It has a full hmf exhaust and a jd jet kit already installed. The jet kit is running a 180 main with a 45 pilot and the blue needle. I do not know what clip it is running and just wanted a suggestion for what settings I...
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