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no sparks on a new F15CMH

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  • boayan123
    started a topic no sparks on a new F15CMH

    no sparks on a new F15CMH

    thank you for your time, no way to start anymore a new ( 10 hours ...) Y 15hp 4S , no sparks on the plugs , engine is far away from a dealer (700 km) (north palawan), in such a case is it always the ignition coils ? anyway to test it ? to change it is very expensive (120 $) and am not even sure it is the problem , pls help thank you very much

  • boats.net
    replied
    .16-.24 between orange and black wires
    4.91 between spark plug wires with plug cap removed.
    But need to check peak reading volts first.

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  • boayan123
    replied
    sadly no change

    Originally posted by rodbolt17 View Post
    unplug the white wire at the CDI and retest for spark.
    thank you very much for your help
    yes to remove the security wire is a good idea but sadly no change no sparks

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  • rodbolt17
    replied
    unplug the white wire at the CDI and retest for spark.

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  • boayan123
    replied
    Originally posted by boats.net View Post
    Test CDI output voltage going to coil with a peak reading voltmeter to see if getting 115 peak volts. Chech secondary coil resistance is 4.91K ohms and primary is 0.16-0.24 ohms on each ignition coil.
    sorry am an ignorant and
    sorry for my english I am french !

    pls more of your time, according to the 1234 on the joined pic how do I proceed for the coil resistance measures ?
    is it 0.16-0.24 ohms btw 1 and 2 and 4.91K ohms btw 1 or 2 (well the positive...) and 3 or 4 ?
    am not on the spot now. will have it check after you answered thanks again
    of course for the CDI output I am not equipped with a peak reading voltmeter or a DVA adapter, i think if I was, I wont ask all those questions ... !
    Attached Files
    Last edited by boayan123; 06-23-2012, 10:09 AM. Reason: more accurate

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  • boayan123
    replied
    yes , thank you

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  • boayan123
    replied
    ok thank you , will try to figure out how to do that .

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  • BaileysBoat
    replied
    The safety lanyard is installed??

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  • boats.net
    replied
    Test CDI output voltage going to coil with a peak reading voltmeter to see if getting 115 peak volts. Chech secondary coil resistance is 4.91K ohms and primary is 0.16-0.24 ohms on each ignition coil.

    Leave a comment:


  • boayan123
    replied
    spark plugs are new

    of course we tried with new spark plugs !

    thank you for your help

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