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  1. #11
    resident guru mandriva's Avatar
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    Re: kawasaki flat top pistons in seadoo 787

    Great !!
    Rossier 7250 rpm
    110 mid pipe/200 stinger
    Head 43cc/45 squish
    Strak swirl 17/22

  2. #12
    PWCToday Regular twk4spd's Avatar
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    Re: kawasaki flat top pistons in seadoo 787

    If I decked the cylinders according to your numbers there would be no going back with those cylinders so it's an all in thing. I'd have to see a doo run with that setup before I could commit. Seems a lot of port work would have to be done. Those piston must be out of something with a shorter stroke and usually a mod to increase in one part of the power band results in a decrease in the other, I could see how more torque in a closed course race ski could be desirable but not sure I would chance losing rpm and top speed that's also used to do rides like Havasu to Topoc and farther. Who knows, I may have a KawaDooki next year. {;o) Lee

  3. #13

    Re: kawasaki flat top pistons in seadoo 787

    Lee, you're asking the wrong pwc question! It's more like.... WHY NOT? hahah. Crazy fleabrained ideas sometimes make good results such as the Tpe engines. Although he used other two stroke engine designs
    1994 1100 SJ - Dead
    1996 spec hx
    "I'm going to be installing the hooker on my driveshaft in the next two weeks." -Element3488

  4. #14
    PWCToday Newbie sea_doo_man's Avatar
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    Re: kawasaki flat top pistons in seadoo 787

    Does anyone have any experience building 787 Flattop who can share some details?

  5. #15
    resident guru mandriva's Avatar
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    Re: kawasaki flat top pistons in seadoo 787

    Hi, what is engine piston kawasaki who fit on rotax787?
    Gp760? Do you need a chime?
    Rossier 7250 rpm
    110 mid pipe/200 stinger
    Head 43cc/45 squish
    Strak swirl 17/22

  6. #16
    PWCToday.com Is My Home Away From Home The Wayniac's Avatar
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    Re: kawasaki flat top pistons in seadoo 787

    I've got several flat top 800s. The porting and combustion chamber volume and shape have to take the Piston crown shape into consideration. I've got a whole bunch of 82mm Wiseco Kawi pistons for em. I've used Pro-X and Wiseco only.

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