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  1. #1

    1993 SL 750 bobs - porpoising problem

    Ive already asked this question privately to some people on the forum but I might as well post it.

    I have two polaris jet skis ones a 1994 slt 750 no mods the other is a 1993 sl 750 with a aftermarket grate ride plate and a later pump, I believe its a sl 750 pump or sl 780 dont recall.

    So now the 93 can keep up with the 94 its a little doggy on the start thinkin its carbs, but my real question is the 93 bobs at full throttle. What can be done to counter act this?


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome to the Hulk

    Extended ride plate is the classic approach to reducing porpoising on the SL hulls.

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Extended plate, scoop type intake grate, and factory style spnsons are the best combination to REDUCE porpoising. Not eliminate it altogether as another misinformed member claims.......

  4. #4
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    Does your ski have trim? That can help as well. With the big SLX sponsons that helps a lot. With all these add ons its a pretty6 good ride but will never be as smooth as a 3 seater

  5. #5
    Thanks it seems to have worked

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    What seems to have worked???

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