300sx/750 conversion ski?

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  1. #1
    PWCToday Regular Steiner17's Avatar
    Join Date
    May 2012
    North Hudson, WI

    300sx/750 conversion ski?

    I have a 750sx with a pretty banged up hull. I'm all about hitting big boat wakes and getting as vertical as possible. I came across a complete 300sx for a good price and am wondering what you guys think about putting my 750 guts and pump in the 300sx hull and if the hull shape on the 300 would be a better freestyle hull than the 750? I've never rode a hull like the 300sx so what are your guys's thoughts?
    '95 Kawa 750sx
    '95 Kawa 750ss
    '89 Kawa 550/650 conversion
    '98 Seadoo SP
    Two '98 Yamaha WR's

  2. #2
    Frequent Poster 89KAW650's Avatar
    Join Date
    May 2009

    Re: 300sx/750 conversion ski?

    DO IT!! You must know that it will take A LOT of time and fiberglass work.


  3. #3
    PWCToday Regular Pb300's Avatar
    Join Date
    Mar 2018
    East Side Michigan

    Re: 300sx/750 conversion ski?

    I've been wondering the same thing! I've come across a '96 750 ss hull with a good pump. I was thinking about picking it up for something like this in the future. Is there a particular 750 pump I should consider or would this model be just fine?


  4. #4
    PWCToday Newbie
    Join Date
    Apr 2010

    Re: 300sx/750 conversion ski?

    I would start with a sitdown 750 so you can just cut it all out in one piece and glass it right into the 300. You could keep the pump and motor still in place when you cut it out if you want.
    2009 Kawasaki 800 SX-R. Bone stock.... Sold in 2011.
    1987 Kawasaki 650 SX. Custom 68" hull, 781CC Big Pin 750SXi engine swap.
    1989 Kawasaki 300 SX. 750SX engine swap, JS550 pump swap, custom shaft.

  5. #5
    I dream skis sportsfreak29's Avatar
    Join Date
    Oct 2011
    Midland, Tx.

    Re: 300sx/750 conversion ski?

    Rhaas is working on a 300sx 650/750/800 motor and 750 pump kit but Robin had to shelf the project for a while. It's pretty much done except for the ride plate. I'm waiting to do the same thing.
    Last edited by sportsfreak29; 08-01-2018 at 02:40 PM.
    If you're not crashing, then you're not trying!!!

    Ski situation in limbo!

    Special thanks to Chris Newmiller, and Mitchell at M&M Marine!

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