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Thread: 300x Vibrations

  1. #1

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    300x Vibrations

    am running in a 300x and noticed some vibrations from the 2000 - 3500 rpms.

    anyone has any ideas ? any suggestions for where I should check ?


  2. #2
    stangbang's Avatar
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    Check your pump/grate area for debris

  3. #3
    Kevan's Avatar
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    Quote Originally Posted by KawaHead View Post
    am running in a 300x and noticed some vibrations from the 2000 - 3500 rpms.

    anyone has any ideas ? any suggestions for where I should check ?
    My 300 does the same thing from time to time. I believe it is seaweed or something making the pump to cavitate.

  4. #4
    Quote Originally Posted by KawaHead View Post
    anyone has any ideas ? any suggestions for where I should check ?
    Remove the jet pump housing from the rear of the ski and check the positon of the drive shaft coming out of the tunnel. The shaft's spline end should be right at the center of the inner circle of the pump shoe (bracket). If it's not, let me know. I will tell you how to align it to the center. The misalignment or off-centering of the drive shaft can cause the vibration. While at it, check the inside of the pump housing for any sign of contact "scratch" done by the impeller edge.
    Last edited by meangreenman; 08-16-2011 at 09:33 AM.

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