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  1. #1

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    '02 gp1200 Humming from CDI. Not starting!

    My gp started running rough as if 1 cylinder was not firing. The problem got worse as the day went on. At one point I couldn't go over 10mph and running over 5k rpm's. After beaching it for a couple of hours, the next time I went to start it a humming sound was coming from the CDI. Would that be a coil prob? Is there a way to test them?


  2. #2
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by xxFNGxx View Post
    My gp started running rough as if 1 cylinder was not firing. The problem got worse as the day went on. At one point I couldn't go over 10mph and running over 5k rpm's. After beaching it for a couple of hours, the next time I went to start it a humming sound was coming from the CDI. Would that be a coil prob? Is there a way to test them?
    humming and not cranking?
    humming while cranking?

  3. #3

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    Its humming but not cranking. No beep or warning lights just a humm

  4. #4
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by xxFNGxx View Post
    Its humming but not cranking. No beep or warning lights just a humm
    check for a siezed motor

  5. #5

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    Jul 2008
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    cape cod
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    when my ski did that every time i hit the start button it would only humm/buzz from the cdi box, it was my battery, it went junk with no warning, fine one day junk the next

  6. #6
    pokechop2006's Avatar
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    summerville sc
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    i agree on the locked up motor,i suggest turning the driveshaft with the plugs out an see if it turns over by hand.

  7. #7

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    Feb 2009
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    Sacramento, CA
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    Just had a humming issue myselfa couple days back changed the abt and all was well. Hope its not a frozen motor. Try to turn it as the others have said! best of luck to ya!

  8. #8

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    it was deff the battery. thanks for the help guys!!!!

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