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  1. #1
    Petty Officer 1st Class
    Join Date
    Feb 2004
    Location
    Deer Creek Utah
    Posts
    296

    Default How many wires need to go tach

    Looking to tackle why tach is not working. New boat to me, use to have johnson motor then switched to 2000 yamaha 90hp 2stroke carby. Have no idea of wires or color codes under dash. Willing to have a look, yellow is 12v ignition key on,black is ground, green is send is this it?

  2. #2
    Petty Officer 2nd Class
    Join Date
    Apr 2010
    Posts
    183

    Default Re: How many wires need to go tach

    That's correct.

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