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  1. 2008 KFX450R Problems

    Engine/EFI/Drivetrain
    Okay guys, I got my Kfx a while back and I'm pretty much new to these ATVs. So back to the problem I would be going and the KFX would be running fine but when I hit 75-100% throttle it would miss and sputter really, really bad. And me and my brother was trying to fix it and we seen a website...
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