Sun Tach wiring ???

I've got a Sun tach I am trying to put back in a frineds car. He cut the wires when he took it out and I'm not sure which wire is which. The wires are blue, green, red and black.
Thanks Clark

[kustumizer]

im not exactly sure but i would say red is power, black is ground, green goes to the coil and blue is the light. Im not exactly sure though. Nate

[OldCarPilot]

I second that. But you can probably find out for sure on their website.

[zman]

The green wire goes to the neg side of your dist. The white goes to a instrument panel light wire that is on when you turn your lights on. The red goes to a12v spot when your key is on and the black is ground.

this is what I've been told...

[BigJim394]

If its a 2 piece Sun tach (sending unit and tachometer) there is a wiring diagram here:

http://www.williamsons.com/tachphotos.htm

[Stovebolt]

here's a copy of the instructions that came with my NOS 6 cylinder Sun Tach. Hope it helps

Cheers

Mark

[Empire32]

Good website about vintage tachs:
http://www.musclecartachs.com/docs/referencesun.htm

Thanks for the help!!!!!
Clark