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  1. #1
    Idiot Conventioneer rrated999's Avatar
    Join Date
    Mar 2008

    GP12 charge coil causes no spark?

    Because the Yamaha service manual has no definitive answer, will a bad charge coil cause a no spark condition? The black/red-blue test shows no resistance. The pulser coils all test out good. Thanks.

    Last edited by rrated999; 09-07-2008 at 02:21 PM.

  2. #2
    Moderator OsideBill's Avatar
    Join Date
    Mar 2006
    United States
    If the charge coil is bad you will not get spark, I have had this issue before.

  3. #3
    ....back from the dead.... J-ME's Avatar
    Join Date
    Aug 2005
    Yes the charge coil charges the CDI not the battery.

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