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  1. Vintage Ski Doo's
    I am having problems figuring out what is wrong with the 1979 Ski-Doo TNT 440 I just bought. It runs decent for 5-10 mins until it is warm and then it starts to bog. It doesn't matter how much throttle you give it, it stays at the same rpms once it is bogging. It doesn't produce enough power to...
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