SBT Jetski Engines, Parts & Accessories

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  1. #1
    Apr 2006
    olympia washington

    Default 90 550 PROBLEMS anything will help

    Hi i have a 1990 kawasaki 550, so hear is the problem. the ski will not rev out. if it is on land and i start it i can hold the trottle and it will just crap out, almost sounds like hitting a rev limmiter. so this is what is confusing me, if i let the ski run out of was for a min, (let it get hot) the ski will rev out very well. i have put a new head gasket on and a new sbn carb. the ski has an aftermarket head and a west cost water box. please let me know where to start with this thing. every i talk to says it sounds like a broken reed. this is a piston port engine.

  2. #2
    Mar 2003

    Default Re: 90 550 PROBLEMS anything will help

    The SBT Forums are for SBT Product Support ONLY. For all general PWC support/discussion, please post on

    Thank you - SBT Mgt.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

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