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Yamaha 200hp spark issue

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  • Yamaha 200hp spark issue

    Hello everyone hopefully there's someone out there that can help with my spark issue I have going on.
    I have a 200hp carbureted salt water series and I'm not getting spark on cylinders #2 #6 and #5. I know the coil packs are good. I'm guessing my problem is somewhere before the ecm. I read that the ecm rarely goes bad on these motors. I was wondering how can I check the voltage output of the pulser coil? Or if anyone out there has any other suggestions on where I can look.
    Any help is greatly appreciated
    -thank you
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