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ultra sp help

  1. ultra sp help

    Clutching
    I'm new to sleds .I have a 96 ultra sp it has a comet primary and stock secondary.I was wondering the best set up for a stock motor the primary has a purple spring and 10-m5 weights .I know they are Polaris weights.sled runs fine I just want it to pull harder and trying to learn about snowmobile...
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