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  1. #1
    alaskamusicman's Avatar
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    750SX porpoising issue

    We bought a '94 750SX this year that porpoises at speed. It has an extended concave ride plate. Any suggestions on what we could add or switch out to make it ride smoothly at speed? One suggestion is to swap out the concave ride plate.


  2. #2
    Check out pwctoday.com they really specialize in standups. I can tell you i owned a 750 and that ski porposed pretty bad.

  3. #3
    alaskamusicman's Avatar
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    Quote Originally Posted by turboman412 View Post
    Check out pwctoday.com they really specialize in standups. I can tell you i owned a 750 and that ski porposed pretty bad.
    right on thanks a bunch !

  4. #4
    Pain is fear leaving your body.... rlovebk's Avatar
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    Body position helps. Are you a big guy or? A shortened pole also helps. Push down on the pole as you go. you can also use a washer or 2 on the back section of the plate.

  5. #5
    alaskamusicman's Avatar
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    That's helpful I'll try pushing down on the pole. I am 190. Three of us tried it this weekend and we all had the same experience.

    Interesting you mention the washers. Looking at this ride plate, would you recommend me replacing it with a different plate or trying to add washers onto it? Click image for larger version. 

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  6. #6
    alaskamusicman's Avatar
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    double-tapped and posted twice

    not sure how to delete a duplicate post.....
    Last edited by alaskamusicman; 06-16-2015 at 12:17 AM. Reason: newbie to posting

  7. #7
    Pain is fear leaving your body.... rlovebk's Avatar
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    LOL 2X the fun ^^^

    Try the washers first. I'd start with 2 of them and then go up or down.
    If that doesn't work get a TBM ride plate.
    Once you get all of that set de-bur and clean stuff up down there then seal all edges up, grate & plate area with some good marine grade silicone.

  8. #8
    alaskamusicman's Avatar
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    Washers n cleanup

    Quote Originally Posted by rlovebk View Post
    LOL 2X the fun ^^^

    Try the washers first. I'd start with 2 of them and then go up or down.
    If that doesn't work get a TBM ride plate.
    Once you get all of that set de-bur and clean stuff up down there then seal all edges up, grate & plate area with some good marine grade silicone.
    thanks bud I'll give em a try before I ride again this weekend. I'll also try adjusting body position. Being new I am tending to lean back to try to stay stable. "Tray time" as they seem to call it will help as well.

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