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hot rod tach wiring help

Discussion in 'New to the H.A.M.B.? Introduce yourself here!' started by greenracer, Dec 6, 2009.

  1. greenracer
    Joined: May 7, 2006
    Posts: 49

    greenracer
    Member
    from sequim wa

    have a WICo tach with 3 wires and cannot figure it out 1 is the light where do the others go???
     
  2. nico32
    Joined: Oct 30, 2008
    Posts: 717

    nico32
    Member
    from fdl, wi

    What colors are the wires and is there a model # on it at all?
     
  3. greenracer
    Joined: May 7, 2006
    Posts: 49

    greenracer
    Member
    from sequim wa

    red white and black. The red goes straight to the light
     
  4. nico32
    Joined: Oct 30, 2008
    Posts: 717

    nico32
    Member
    from fdl, wi

    Black should be your ground and white should go to your coil then.

    I'd run a quick test on it to verify the light works using the red and the black.
     

  5. PegLegStrick
    Joined: Aug 8, 2007
    Posts: 1,883

    PegLegStrick
    Member

    Welcome from South Georgia :D
     
  6. greenracer
    Joined: May 7, 2006
    Posts: 49

    greenracer
    Member
    from sequim wa

    I have tried white to coil and black to ground touched it and tach jumped past 8 grand then i tried connecting tach between ing side of coil and coil did the same thing Jumped way past 8 grand????
     
  7. nico32
    Joined: Oct 30, 2008
    Posts: 717

    nico32
    Member
    from fdl, wi

    What's it out of, could it be that it came out of a positively grounded vehicle?
     

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