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exhaust glow

  1. help jetting question?!

    Raptor 660 Mods
    Well got an 01 raptor, with stock air box k&n filter and yoshi exhaust. Problem is exhaust glows I think its running lean. I know I need to rejet was in need of help with what jets and numbers I would need to run with my set up. All stock except k&n filter and yoshi exhaust. Thank you in...
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