JS550 20 Impeller and pump
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  1. #1
    PWCToday Regular
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    Jun 2010
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    New Hampshire
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    JS550 20 Impeller and pump

    This set up came off my 550/750 conversion ski. Impeller is in amazing condition and the pump/shoe is also in very good condition.

    Message for more info. Looking for $200 plus shipping.



    Sent from my SM-G930V using Tapatalk
    Last edited by rydog; 02-10-2019 at 07:10 PM.

  2. #2
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: JS550 20 Impeller and pump

    Just curious, how fast was that ski?
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  3. #3
    PWCToday Regular
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    Re: JS550 20 Impeller and pump

    Quote Originally Posted by Myself View Post
    Just curious, how fast was that ski?
    To be honest, I never officially GPS my top speed. I am guessing around mid 40s.

  4. #4
    PWCToday.com Is My Home Away From Home BLRider's Avatar
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    Re: JS550 20 Impeller and pump

    20 can get you over 50 with the right motor!
    Never argue with an idiot, they will drag you down to their level then beat you with experience.

  5. #5
    PWCToday.com Is My Home Away From Home theVetteman3's Avatar
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    Re: JS550 20 Impeller and pump

    BLRider is right. With a limited dual carb 750 small pin, the OEM dual 3 jet Keihins tuned right, big pin 8k rpm CDI, and a 69mm nozzle, I was at 50.3. I have no doubt it could have gone higher, I was at the rev limiter and did 49.9 with the small pin CDI a few times. Realistic max with a good set up is 50-51.
    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 [47.8mph gps]
    1994 XiR: 830cc Superstock, PJS side draft, 13/18 swirl [53.7mph gps]
    1995 SJ MINT:
    [TBD]



  6. #6
    Frequent Poster
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    Aug 2015
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    Kalamazoo, Michigan
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    229

    Re: JS550 20 Impeller and pump

    Messaged you.

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