1989 Jetmate 650cc Spark Issues
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  1. #1
    PWCToday Newbie
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    1989 Jetmate 650cc Spark Issues

    Hey everyone. First time using this forum. I just picked up a Jetmate this past weekend and am trying to get spark. It looks like the motor was submerged from rainwater at some point because there is a water line in the hull. So far I replaced all the fuses, made sure the battery is producing 12.5v, made sure the stop switch was engaged, and tried old and new spark plugs. I checked the 2ndary winding resistance on the ignition and it is in spec, but when I remove the igniter and check the resistance on the 4 wires that come out, my readings don't match what is in the manual. Same goes for the tests on the rectifier. Wouldn't it be unusual for both of these to go bad? It looks like the water wasn't high enough to get inside the CDI box. Not quite sure If I should be replacing these parts or should I be focusing on the stator?
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    Last edited by Doebydude; 05-09-2018 at 11:23 AM.

  2. #2
    Resident Guru JC-SuperJet's Avatar
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    Re: 1989 Jetmate 650cc Spark Issues

    Assuming you set your ohm-meter to the 1 Kilo-ohm scale, then the results are out of range.

    Make sure the ohm-meter is set to the correct range, then test again.

    The CDI is the only electrical component that can yield false positives. All others are Pass or Fail consistently. And sometimes the Stator Coils tested at room temperature pass due to "layer shorts", a break in one of the windings (when warm, the ends separate).
    Last edited by JC-SuperJet; 05-09-2018 at 12:05 PM.

  3. #3
    PWCToday Newbie
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    Re: 1989 Jetmate 650cc Spark Issues

    I checked the units a few times, the voltmeter is the kind that automatically detects the range and then gives you the units. In this case it's giving me M (mega)-ohms so after I convert to kilo-ohms using online calculators I get these huge numbers. Is there anyone in the Tampa area that has these kinds of parts? Id love to double check on parts known to be good and possibly buy them if that is what I need. Thanks!

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