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  1. #1

    Default Tach wiring 5 wires??

    Picked up this tach for $10 at a swap meet. It has 5 wires which I have not seen. Took off the back. One red wire goes to the light socket. The other red wire goes to stud. Could that be ground? Then there are three wires that go into the tach yellow black and blue
    Advice on how to hook this up?Click image for larger version. 

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ID:	142745Click image for larger version. 

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ID:	142746



  2. #2
    Join Date
    Oct 2016
    Location
    Tellico Plains
    Posts
    12

    Default

    Red one with bulb? Well light! The other red one...is it insulated from the tach with a grommet? If so its not a ground. Without seeing inside the tach, the other three could be anyones guess, but you do have these to make it work. 1-Ign ONLY, hot when key is on. 2-Dist.connection, neg.side... 3-Ground. 4-Light. 5-? Know this is not the best help you can get, does that tach have a name on it? Looks to have been thru some rough times.

    Robert

 

 

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