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  1. #1

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    My conversion is bobbing at 90mph

    any tips or pointers? I tried a forum search, not much luck. Right about 90 on flat water my ski will start bobbing like it is hitting wakes and wont stop until I back off the speed, it is holding my ski back pretty bad as 90 seems to be the magic number no matter what the conditions. I am running stock trim tabs and a jim plate, any pointers or ideas?


  2. #2
    Happily Self-Employed WFO's Avatar
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    drop the tabs some


  3. #3
    Quote Originally Posted by toxicgun View Post
    any tips or pointers? I tried a forum search, not much luck. Right about 90 on flat water my ski will start bobbing like it is hitting wakes and wont stop until I back off the speed, it is holding my ski back pretty bad as 90 seems to be the magic number no matter what the conditions. I am running stock trim tabs and a jim plate, any pointers or ideas?
    When you back off does it get worse for a second?

  4. #4

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    Quote Originally Posted by OutlawGPR View Post
    When you back off does it get worse for a second?
    not that I have noticed

  5. #5

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    Quote Originally Posted by WFO View Post
    drop the tabs some
    how much? Would some r&d trim tabs help?

  6. #6
    What kind of plate? What angle on plate?

  7. #7

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    Quote Originally Posted by OutlawGPR View Post
    What kind of plate? What angle on plate?
    jims cut r&d, the two washers are stacked towards the front I believe

  8. #8

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    pretty sure it is not stuff as I dont feel the rear rising front going down, just starts bouncing to the point the pump comes out of the water. It does it every time like clockwork, get up to 88,89,90 bouncing out of the water, pump stops grabbing.......

  9. #9
    Quote Originally Posted by toxicgun View Post
    jims cut r&d, the two washers are stacked towards the front I believe
    I like the tabs to be at .120 all 4 corners. Thats the smooth R+D tabs. Also the plate does good for me at .930...

  10. #10
    Quote Originally Posted by toxicgun View Post
    jims cut r&d, the two washers are stacked towards the front I believe
    I like the tabs to be at .120 all 4 corners. Thats the smooth R+D tabs. Also the plate does good for me at .930...

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