intermittent spark JS 550
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  1. #1
    PWCToday Newbie
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    intermittent spark JS 550

    Hey techies, i am experiencing intermittent spark with a reed motor, sparks strong and runs good when it does spark. Stator ohm checks are to spec, so far I have tried a different CDI - no change, removed flywheel and stator cleaned and inspected stator for potential grounds, found none and flywheel looks new, so reinstalled them with new molex connectors and sparked at first then stopped, then tried replacing whole ebox with a spare and got spark at first then nothing. so far i have replaced everything but the stator and flywheel, stators are expensive and i don't have a spare one so at this point i guess i could try a different flywheel to see if i get a consistent spark, oh also removed the stop relay from the circuit and that wasn't it, so i am at a loss now and thought i would open it up to suggestions from the forum, please help.

  2. #2
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: intermittent spark JS 550

    Did you try with stop switch disconnected?
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  3. #3
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    Re: intermittent spark JS 550

    yes, removed the stop relay, no change

  4. #4
    Top Dog Bionic racing's Avatar
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    Re: intermittent spark JS 550

    Ground that box with a jumper lead , possible bad ground @ stator , have reed stators if needed
    Last edited by Bionic racing; 10-24-2018 at 01:45 PM.

  5. #5
    PWCToday Regular
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    Re: intermittent spark JS 550

    I always start with the easiest stuff first, closest to the spark with Plugs and Caps. Work backwards from there. Ground leads, corroded or damaged e-box wires / connections, Flywheel is unlikely to cause intermittent spark I would think.

  6. #6
    Top Dog Rompn's Avatar
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    Re: intermittent spark JS 550

    Take off the spark plug boots and inspect the wire. Cut back the leads until you get a clean wire. Re-attach the spark plug boots and go test.
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  7. #7
    PWCToday Newbie
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    Re: intermittent spark JS 550

    guys, read the post, I tried a spare ebox and that didn't change anything.

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