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fuel filter

  1. Engine/EFI/Drivetrain
    Hey guys. I bought an 08 Kfx450r and when I took it to the trails, it was bogging at full Throttle. As soon as I drop to 3/4 of the way, it speeds back up, then full throttle Boggs again. When I got home I ordered a flex fuel controller programmer and also cleaned the injector, changed...