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  1. #1
    yami_rida#26's Avatar
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    Porpoising problem

    I currently run stock stepped sponsons and riva trim tabs and with a STOCK ride plate i still got porpoising.. could someone help me out on this?


  2. #2
    WATER WOODY's Avatar
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    Why are you running the Nujet 5.5,small hub prop.You have an 07' w/HO big hub pump.
    Last edited by WATER WOODY; 06-11-2008 at 05:45 PM.

  3. #3
    yami_rida#26's Avatar
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    I haven't actually received this prop yet but Tommy (2fast4u) said it's a Nujet 5.5 for the HO pump????

  4. #4

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    that impeller will be fine (woody nujet now offer a large hub impeller)

    to help with the porpoising shim the trim tabs down, 2 washers under all 8 mounting bolts

  5. #5
    no reverse jayohentran's Avatar
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    +1...that's what I did to get rid of the porpoising on my gpr. It helped a lot.

  6. #6
    yami_rida#26's Avatar
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    thing is..i thought you'd only need to shim the stock ones to cure porpoising i though with the riva's extended length it would not need any shimming..but i guess i'll have to do that thanks guys..

  7. #7
    PuprleNuprleGPR's Avatar
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    Try shifting your weight forward
    THats the easiest and cheapest way to get rid of IMO

  8. #8
    WATER WOODY's Avatar
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    Quote Originally Posted by philip_gpr View Post
    that impeller will be fine (woody nujet now offer a large hub impeller)

    to help with the porpoising shim the trim tabs down, 2 washers under all 8 mounting bolts

    Oh ok Phil,i thought they were not being sold yet.

  9. #9
    GREENSMACKER's Avatar
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    Quote Originally Posted by WATER WOODY View Post
    Oh ok Phil,i thought they were not being sold yet.
    got mine !!!!

  10. #10
    westy's Avatar
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    it says in your list of mods you run a jims ff plate?

    Quote Originally Posted by yami_rida View Post
    I currently run stock stepped sponsons and riva trim tabs and with a STOCK ride plate i still got porpoising.. could someone help me out on this?

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