Hey Guys

I bought used Harley tach from a buddy of mine that got it with a bunch of other parts. It mounts to the triple tree and has 3 wires, red, black and yellow.

I found install instructions online for Harley mini tach, but the wire colors don't match.

Does anyone have an idea on what wires go where?

I've got the tach installed and wiring routed, just need to know which wires go where.
The black and yellow have eyelet connections while the red has been sniped flush.

Thanks

 

I found this in case anyone needs it:

On 1996-98 models:
12 Vdc (Red) lead: To speedometer power post located inside fuel tank console.
On 1998 and earlier models:
Ground (Black) lead: To speedometer ground post located inside fuel tank console.
Signal (Yellow) lead: To coil primary terminal (which has blue or pink wire attached).

 

Best guess without knowing which tach you have:
Red +12V
Black Ground
Yellow Tach signal (usually Coil+)

Red and Black for power are standard conventions. That leaves the yellow wire for the signal.

 

Thanks nhrider, I looked for a part # before I posted but without taking the tach apart there was no finding it.

Much appreciated!

John