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  1. #1
    Cadet
    Join Date
    Mar 2010
    Location
    Loveland CO
    Posts
    23

    Default 78 Mercury 402 installing sierra push to choke ignition NEED HELP Identifying wires

    I am trying to install a sierra push to choke switch in my merc control box. It fits ok but but of course the terminals are different. Does any one have a mercury wiring color info and how they would match up to the posts on this sierra switch #mp4100
    Thanks

  2. #2
    Supreme Mariner
    Join Date
    Mar 2004
    Location
    On Barnegat Bay, NJ
    Posts
    15,769

    Default Re: 78 Mercury 402 installing sierra push to choke ignition NEED HELP Identifying wir

    Look on the maxrules.com website for the wiring colors. Normally they are: red is Battery, Yellow is Starter solenoid, white is Ign accessory, black is ground, grey is choke; orange is ign killer, brown is tach signal.

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