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Where do the wires go on a Sun Super Tach II?

Discussion in 'The Hokey Ass Message Board' started by 50dodge4x4, Jul 27, 2006.

  1. 50dodge4x4
    Joined: Aug 7, 2004
    Posts: 3,537


    Well, I went out and dropped big bucks :rolleyes: ($5) on a Sun Super Tach II from a guy I know. He had it in his truck for a while, but took it out a few months ago. He doesn't remember where the wires are suppose to go.

    There is a black wire with a soderless eye on it, a white wire that has about 1/2" stripped back, a green wire and a red wire, both of which look like they were never used.
    I presume the black wire connects to the neg side of the coil and the white wire is a ground wire. I figured the green and red wires were probably for the light? Thought I should check before I hooked it up wrong and smoked the thing, I've done things like that before....
  2. Barn-core
    Joined: Jan 26, 2004
    Posts: 946


    Black - ground
    Red - switched +12V
    Green - negative side of coil
    White - panel lights

    This is directly off of the tach install instructions, from the one I put in my car a few weeks ago. Good luck.
  3. mercury Bill
    Joined: Dec 16, 2002
    Posts: 581

    mercury Bill

    Yep, thats it 100% correct
  4. 50dodge4x4
    Joined: Aug 7, 2004
    Posts: 3,537


    WOW! Good thing I checked, would of been smoke for sure.
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  5. carfreak101
    Joined: Oct 26, 2009
    Posts: 1

    from warren

    thank u barn core i have to put it in my car immediatlly
  6. wallygt
    Joined: May 4, 2011
    Posts: 1

    from canada

    where can i get the wiring haress for a sun super tach II
  7. Toner283
    Joined: Feb 13, 2008
    Posts: 1,268



    There should be 4 colored wires coming out of the back of the tach. add extra length to all of them as needed and hook them up as listed in Barn-core's post. Tach's don't usually come with a harness. Just a few inches of wire that you need to splice to.
  8. racer32
    Joined: Sep 22, 2007
    Posts: 745


    The Sun Super Tach that I have(had??? can't seem to remember where I put it) uses little round connectors that plugged onto pins on the back...anyone know where to get those connectors??? Sorry for the hijack!
  9. James Kilby
    Joined: Jun 9, 2013
    Posts: 1

    James Kilby
    from maryland

    I have an older tach. 10 years or more. Found it in a old box. No instructions. I want to install it but my colors are black, red , blue and green. Do we think the blue the same as the white?
  10. 1ton
    Joined: Dec 3, 2010
    Posts: 148


    Got my super tach II sitting here and my wires are red black green and blue. No white. I thought that the blue was for the light.
  11. Mr T body
    Joined: Nov 2, 2005
    Posts: 1,177

    Mr T body
    Alliance Vendor
    from SoCal

  12. All these wiring questions can usually be solved by pulling the can, a diagragm is usually pasted on the innards.
  13. sixty-fouronthefloor
    Joined: Jun 18, 2013
    Posts: 20

    from Wyoming

    This is very interesting to me as I have a sun super tach II, however mine has five wires. Anyone have any idea what's going on there?

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  14. best2923
    Joined: Feb 20, 2013
    Posts: 103

    from north Id

    see post #2 100% right
  15. Lee_Ford
    Joined: Aug 16, 2009
    Posts: 78


    I also have a Sun Super Tach II and needed the pinout IDs. Found this on another forum. It was for model 7901 and mine is a 9109. Logic says it is the same. I hope so. Goin' to try it next nice day.

    B is for B+ battery
    G is for ground
    L is for light
    T is for the ignition [ or trigger might be a better name. ]

    Attached Files:

    • 7901.jpg
      File size:
      33.1 KB

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