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  1. #1
    powerstroke specialist mikegp's Avatar
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    hi guys i need some help here

    OK I'm working on 01 1200 r the ski has a completed stage two kit.its running 145 even in all cylinders,pv motor disconnected valves down.carbs has osidebill specs.its running only 65 mph,and it supposed run 70mph.it has a solas 13/20 Sb ,this ski is power crazy it jumps out of the water even with two people on it. at wot 7000/7100 rpm.it has 0% cavitation i mean 0.it really jump out of the water, if you don't pay attention i will throw you off.its running 93 only.wear ring looks perfect,as the prop is new also.

    my question is: what did i miss here.what i did wrong that i lost speed.
    please any ideas? the only thing i can think of is something wrong with the prop.

    please any help will be appreciated.thanks.


  2. #2
    Happily Self-Employed WFO's Avatar
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    who says its supposed to run 70?

  3. #3
    powerstroke specialist mikegp's Avatar
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    the seller of the stage two kit.which in this case its from Riva.

  4. #4
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by mikegp View Post
    the seller of the stage two kit.which in this case its from Riva.
    I was afraid you would say that

  5. #5
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by WFO View Post
    I was afraid you would say that
    haha,why ?now I'm the one afraid.

  6. #6
    powerstroke specialist mikegp's Avatar
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    will the r&d intake grate slow down the ski?compare to the four bar factory one?

  7. #7
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by mikegp View Post
    will the r&d intake grate slow down the ski?compare to the four bar factory one?
    the R&D will slow it down just a bit, but the factory one will get you hurt

    the aftermarket grate is better for handling and safety
    throw the factory one away and dont look back

  8. #8
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by mikegp View Post
    haha,why ?now I'm the one afraid.
    Back in 2004, I installed my first Riva stage II kit on my 04 GP1300R, and it actually slowed down.
    I had to get a old GPR God (Fercho) to help me get the boat back up to speed... and the speed was 68mph, and that was with a 1300, about a 4 mph improvement over stock

  9. #9
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by WFO View Post
    the R&D will slow it down just a bit, but the factory one will get you hurt

    the aftermarket grate is better for handling and safety
    throw the factory one away and dont look back
    i will do that.

  10. #10
    powerstroke specialist mikegp's Avatar
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    but what do you recommend to do on my case.have the prop re-pitch?remember its a 13/20 Sb solas.

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