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  1. #21
    PWCToday.com Is My Home Away From Home seadoobutch787's Avatar
    Join Date
    Mar 2005

    Re: One Sick 650SX... 750 Dual Carb plus complete make over

    I bought that same Coffman pipe for my 550/750 build!
    1997 Seadoo SPX---limited mod
    1996 Seadoo GSX--Cruiser
    1995 Kawasaki 550/750sx---Conversion ski

  2. #22
    PWCToday Regular newtondeegan's Avatar
    Join Date
    Aug 2017
    Lake Havasu City, AZ

    Re: One Sick 650SX... 750 Dual Carb plus complete make over

    Ski is very clean.
    I will be using this thread to base my 650sx rebuild/restoration.

    I like what you have done.

    PS Graphics kit is sweet, I want one just like that too!

    Awesome read, great build!

  3. #23
    PWCToday.com Is My Home Away From Home theVetteman3's Avatar
    Join Date
    Jul 2008
    Chicago / Portage, MI

    Re: One Sick 650SX... 750 Dual Carb plus complete make over

    Thanks man, glad it could provide some inspiration. Definitely PW tubbies, a grippier ride plate, way stiffer pole spring, and a few more things would help improve this ski even more. Stock it was barely rideable, it's amazing the transformation that you can do on these skis.

    750 hull skis because of their added weight tend to be pretty soft on the bottom, so this ski had a pretty darn good bottom end even compared to that. I actually would like to try a lightweight 750 with this same Coffman pipe and see how it feels. This 650 set up had a nice crisp bottom end with more usable thrust right off idle than pretty much any 750 with a 750 engine has had that I have tried. Shoot we have factory pipe 750 skis in our group that have less low end than my stock 09 SJ!
    1985 JS550/800 "Pretty Red": Newmiller 800, Rhaas 750 pump conv. [56.3mph gps]
    2009 1100 SJ:
    Kawi 1100 build in progress
    2009 SJ MINT:
    KP steering adaptor, Worx 228 intake [45.8mph gps]
    1987 WJ650:
    6M6, JD Intake Grate, 17/20, cheater pipe [45.2mph gps]
    1994 XiR: 830cc Superstock, PJS side draft, 13/18 swirl [53.7mph gps]
    1998 SXI PRO:
    3DR hull mods [TBD]

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