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  1. #1
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    Feb 2020
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    Antique ign system

    Ser 3112443 115 hp .trying to help a broke guy .no ign.i used to use a 9 v. Battery on the 3terminal side to sub for the trigger,but can’t remember which terms or polarity.joe ,Leonp, do you remember?savage? Jim sheetz

  2. Member
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    Jun 2013
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    LONGVIEW TEXAS
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    #2
    how old ,magneto or trigger , cdi has some tests for some older ign systems
    .................................................. ...the scariest thing in life is the unknown ...................................

  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #3
    +1... That serial number doesn't even show up in my archived system (which goes back into the late 70's).


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
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  4. Member
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    Feb 2020
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    #4
    Hey guys,doing this over phone.1971 .i think trigger /battery cd.i plan to use cdi tests,but I dues to use 9 volt batt test that a merc instructor showed me a long time ago,but can’t remember procedure.best I can tell,393-3736a79 trigger.used batt. To substutute for trigger.cant remember which terminals or batt. Polarity.thanks Jim Sheetz (they never let you go)

  5. Member
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    Jun 2013
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    #5
    went over my head ive used cdi tests before though using jumpers and listening for spark (pop)
    .................................................. ...the scariest thing in life is the unknown ...................................