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  1. #1
    PWCToday Newbie
    Join Date
    Aug 2017
    Dennis, KS

    Angry JS550 throwing sparks between starter and flywheel

    So my 88 js550 is throwing sparks between the starter and the flywheel. Iím somewhat new to these machines. Iíve tried a different starter am it still does the same thing. As soon as the starter connects to the flywheel, it throws tons of sparks. It looks like electric sparks, not like theyíre grinding together. Anything will help

  2. #2
    PWCToday.com Is My Home Away From Home
    Join Date
    Aug 2011
    Austin, Texas, USA

    Re: JS550 throwing sparks between starter and flywheel

    Some amount of sparks are normal from almost any starter -- if it is not a sealed type. But most skis have sealed ones. Are the sparks coming from the inside of the starter or outside? If it is outside then it is very likely that you have bad connections that go to the starter. Disconnect the cable from the battery negative terminal. Remove the red cable that goes from the starter to the starter solenoid. Inspect and clean the surfaces on the starter that it connects to and both ends of the cable. You may also need to remove the starter to clean the surface where the starter grounds against the engine block.
    Riding mostly Lake Austin

    1984 JS440 -- 1989 650sx -- 1991 X2 -- 1992 750sx -- 1995 900zxi (qty 2) -- 1995 X2

    Quote Originally Posted by cujo View Post
    God intended PWC to be two strokes, as well as dirt bikes, snowmobiles, and chain saws....

  3. #3
    PWCToday.com Is My Home Away From Home john zigler's Avatar
    Join Date
    Mar 2003

    Re: JS550 throwing sparks between starter and flywheel

    Cheap / Bad starter(s)
    RCJS also doing business as WATCON
    608-743-1305 9am to 5pm CST m-f
    email watcon@watcon.com

    Please visit our web sites

    new parts / products / services www.watcon.com
    used parts www.rockcountyjetski.webs.com
    thank you

    Please check out and like WATCON on Facebook

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