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Thread: Bouncing ski

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    tealgreen2000's Avatar
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    Bouncing ski

    Anyone know how to stop the ski from bouncing up an down soon as it picks up speed I tried shiming the front an the rear I moved the sponsons up an down , stepped them also is there something else took do any help or idea thanks


  2. #2
    Is it almost winter yet??? ProXR 440's Avatar
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    Shim the trim tabs down. Start with 8 washers, 1 under all 4 bolts on each tab and go from there. You can also stagger them with 1 washer under the front 2 bolts and 2 washers under the rear 2 bolts to shim the back of the tabs down more.

    Step the sponsons, front all the way up, rear all the way down. Shim the front of the plate down until you have a small step from the pump shoe to the ride plate, you don't want any part of the ride plate sticking down lower than the shoe. Raise the rear of the ride plate as high as you can get it. You'll get better top speed having the plate setup that way and should be able to settle the ski with the trim tabs without sacrificing top speed.

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    old school gp's Avatar
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    Quote Originally Posted by tealgreen2000 View Post
    Anyone know how to stop the ski from bouncing up an down soon as it picks up speed I tried shiming the front an the rear I moved the sponsons up an down , stepped them also is there something else took do any help or idea thanks
    what kind of ski is it,year make and model need more details buddy

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    tealgreen2000's Avatar
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    A gpr/sho conversion u already know u ride with me smart a$$

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