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need help

  1. Pictures and Videos
    HELLO, EVERYONE IM NEW TO THE WHOLE THING ABOUT THIS KFX 450R, IS THE FIRST TIME I HAVE A FULL INJECTION MACHINE AND NOW I HAVE A PROBLEM WITH IT THE MACHINE WILL START AND IDLE BUT WHEN I GIVE IT GAS START BACKFIRING AND THE ACCELERATION IS BAD IF I GIVE HALF WAY THROTTLE THE BACKFIRE IS MORE...
  2. Body/Controls/Protection
    I recent saw a picture of a Kfx450r with a unique Case saver/Chain guard on it. I’m not sure if it’s custom or not. Anyone know about it? Who makes it and Where to buy it? Any help is appreciated. Thanks.
  3. Important Information
    Ok so my little brother left the key on the other day after riding my quad real quick so when I went to ride the battery was dead. I had someone waiting for me so I decided to take out the 75 amp or watt( not sure what it's called) charger for quick starts. The red piece fell off the battery...
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