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  1. #1

    Default 1975 Mercruiser 120 wiring

    Hello, I am in need of a wiring diagram for the trim controls on my 1975 Imperial with the Mercruiser 120, Mine only has the single solenoid and all I have been able to find is diagrams with the dual trim solenoids. I could also use the diagram for where the wires from the engine harness connect to the gauges as the wire for my oil pressure cutoff switch seems to have been cut somewhere and needs to be replaced, thank you.

  2. #2
    Chief Petty Officer
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    Default Re: 1975 Mercruiser 120 wiring

    try looking here for diagrams;www.boatfix.com/merc you may also find some manuals for operation on mercruiser and mercury/mariner outboards at;www.brunswickmarineemea.com under downloads

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