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  1. #1
    Join Date
    Aug 2009
    Location
    Posts
    92

    Default "1986 AQ 151A cuts out after l

    "1986 AQ 151A cuts out after long rides ~1/2hr.

    After letting the engine sit for ~15+minutes it will restart and run flawlessly.

    I have finally traced it to no spark from the coil. Swapped in an auto yellow accel and same results(runs, then cuts out ~1/2hr).

    Coil was hot as h*ll and when I swapped back to original Bosch coil - great spark.

    Is there a coil that I can buy for my rig that won't overheat and shut down?

    Any help would be appreciated, Thanks!"

  2. #2
    Join Date
    Feb 2006
    Location
    Ladysmith, BC, Canada
    Posts
    5,862

    Default "The primary coil resistance s

    "The primary coil resistance should be around 3 ohm. If you measure around 1.5 ohm between the + and - leads, then you have the wrong coil for your application.

    Try to get a 3 ohm coil with internal resistor."
    [URL]http://www.grandmaraismichigan.com/Recreation/fisherman.gif[/URL]

  3. #3
    Join Date
    Aug 2009
    Location
    Posts
    92

    Default Thanks EL P. Is there a br

    Thanks EL P.

    Is there a brand or model that you would suggest?

    Cost is not an issue - looking for something bullet proof - just tired of breaking down...

    Mike

  4. #4
    Join Date
    Feb 2006
    Location
    Ladysmith, BC, Canada
    Posts
    5,862

    Default "Some people seem to like flam

    "Some people seem to like flame thrower from Pertronix, which is a 40,000V coil.

    http://www.pertronix.com/prod/ig/flame/coils/chart.aspx"
    [URL]http://www.grandmaraismichigan.com/Recreation/fisherman.gif[/URL]

  5. #5
    Join Date
    Aug 2009
    Location
    Posts
    92

    Default "Thanks again El P. The boa

    "Thanks again El P.

    The boats runs 5000rpm @ 16MPH(minimum planing speed ) so I need a coil that can take a beating.

    Max speed is ~18mph at 5400rpm.

    Mike"

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