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  1. YFZ450 & YFZ450R General Talk
    So I have a 2005 YFZ 450 that I've been having trouble with misfiring for a while now. its been misfiring bad when under heavy acceleration and when you get up to the speed you want and are just cruising. usually the problem doesn't start to show itself until I've been on it riding for a while...
    misfire
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