Re: Mercury Mark 55 Help

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July 14, 2015 at 2:39 am #20110
jw-in-dixie
Participant

    I hope you do get it running. There’s nothing like the old Merc fours. They run great.

    I find it is easier to work on the magneto if the motor is set on its head. Then you
    can see a lot better. It should have a Fairbanks-Morse magneto, point setting .010 +.000, -.002, ie a tight .010. Plugs should be Champion J6J set @ .025, or better Jap B6S, IMHO.

    Jeff knows all about these motors.

    Good luck, JW in Dixie