-
Mercury Master
2,620 Answers
- Posted on Oct 21, 2012
Re: how to wire the tachometer
Red goes to the ignition switch fuse for power in the fuse box green goes to the the negative side of the distributor white is for the tachs light so it will go to the dash light fuse in the fuse box and black is for the ground.
aftermarket tach has three wires. red black green possibly. what does yours have?
×