Reply To: Scott McCulloch 25

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February 27, 2020 at 1:58 am #195936
JOHN HUDSON
Participant

    International Member

    Hi, John Hudson, Scott Special Interest Group Leader.
    Gary Orloff asked me to get into this discussion. I will do my best.
    1958 and 1959 22hp Electric an Manual start motors are all Magneto ignition.
    From 1960 to 1968 the 25 through 28hp motors used Battery ignition for Electric start motors. Manual start motors stayed with the Magneto. I think the reason being battery ignitions are stronger at low revs and starting. Magnetos are superior at higher revs.
    1960 battery start 25hp had BALLAST RESISTOR mounted on exhaust cover plate. 1961 electric starting 27.7hp had ballast behing
    ignition switch mounting. The magneto motors have no ballast resistor.
    The motor in question is 1958, 1959, or 1960. Because it shows adjustable high speed jet.
    Disconnect wires? Magnetos run with open circuit. Battery ignitions run with closed circuit. And the alternator/rectifier disconnect is a good idea.
    Am I of help?