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  1. #1
    PWCToday Newbie freestylekid23's Avatar
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    87' js550 turning over slow

    hi i've been having problems with my js550 it has been turing over slow so i recently put in a new e box in, a new battery and a new stator and it still is turning over slow.! Can someone please help me!?

  2. #2
    PWCToday.com Is My Home Away From Home Tom V's Avatar
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    Re: 87' js550 turning over slow

    If it turns over fast with the spark plugs removed then you may have a bad starter or wiring issue.
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  3. #3
    PWCToday.com Is My Home Away From Home
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    Re: 87' js550 turning over slow

    Tom, you may have missed the most obvious and most likely problem. A new battery does not necessarily mean it is fully charged (it might also be bad). Freestylekid23, what voltage is the battery with everything off? It should be at least 12 volts DC.
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  4. #4
    PWCToday.com Is My Home Away From Home wielgot's Avatar
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    Re: 87' js550 turning over slow

    should check all batt cables and make sure they are tight... x2 on the batt charge make sure 12v min
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  5. #5
    PWCToday.com Is My Home Away From Home Tom V's Avatar
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    Re: 87' js550 turning over slow

    Yep your correct, I know if I put a new battery in and it still dragged I'd be think'n Did I just get screwed on a new bad battery and then I'd be pissed and check it.
    www.shopsbt.com
    The Worlds Largest PWC Engine Remanufacturer

    94 sl 750 (sold)
    99 slh 700 (sold)
    2000 pro 1200 (sold) old race ski
    2001 genesis
    96 superjet 701(sold)
    97 Hurricane
    97 sl 700 to 1200 conversion
    03 octane (sold)
    97 sltx 1050
    96 Hx limited class
    07 GTI se 155
    05 150 sportster 215
    98 PRO 785
    We can't solve problems by using the same kind of
    thinking we used when we created them.
    --Albert Einstein

  6. #6
    PWCToday Newbie freestylekid23's Avatar
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    Re: 87' js550 turning over slow

    my battery charger says fully charged and it doesnt turn over super fast withour the plugs but turns over faster than with the plugs

  7. #7
    PWCToday.com Is My Home Away From Home
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    Re: 87' js550 turning over slow

    Turning it over without the plugs just indicates that it's easier with zero compression. You could still have any of a number of problems with wiring, battery, contacts, solenoid, starter, crank, rings, pistons, etc.

    You can't really trust a battery charger to indicate if a battery is fully charged or not, even if it has a voltmeter on it -- the volt gauges on those are horribly inaccurate.

    Next step is a battery test with a load tester. It's really easy and will confirm whether or not your battery is indeed good or bad. If you don't have a tester, then the best way is to take it to an auto parts store and have them test it for free. If you can't do a load test this way, then you'll need to test the voltage on the battery as it turns over. Less than 9 volts and it's a bad battery.

    If they/you test it correctly and it comes up as OK, then the next best course of action is to check wiring.
    You cannot multiply wealth by dividing it. -- Adrian Rogers

    San Diego, CA is closer to El Paso, TX than Brownsville, TX is to El Paso

    Riding mostly Lake Austin

  8. #8
    PWCToday.com Is My Home Away From Home Tom V's Avatar
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    Re: 87' js550 turning over slow

    dont overlook the positive and negative cables, if they are damaged internally you will not get enough amps to turn the starter over fast when the engine is under a load. Clean the ground connection to the block too.
    www.shopsbt.com
    The Worlds Largest PWC Engine Remanufacturer

    94 sl 750 (sold)
    99 slh 700 (sold)
    2000 pro 1200 (sold) old race ski
    2001 genesis
    96 superjet 701(sold)
    97 Hurricane
    97 sl 700 to 1200 conversion
    03 octane (sold)
    97 sltx 1050
    96 Hx limited class
    07 GTI se 155
    05 150 sportster 215
    98 PRO 785
    We can't solve problems by using the same kind of
    thinking we used when we created them.
    --Albert Einstein

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