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2002 sportsman 500 rse

  1. Sportsman 500 HO performance

    ATV Repair and Maintenance
    I have a 2002 sportsman 500.I have been having mid range performance problems.At mid range under load the engine will sputter and bog down.If I hit the throttle it will run great.The machine starts fine and idles perfect. I just rebuilt the carb and replaced the plug.The problem starts at about...