While still trying to figure out my tach wiring (please help by looking at my other post), I stumbled across a harness that was unplugged. The harness with the green & green/red wires coming off of the top of the oil tank was unplugged on the starboard side of the motor.
Since owning the motor...
Trying to wire the tach on a boat I just purchased. The tach was installed but not wired up. It is a 40hp Yamaha with side controls. (not sure on model #'s off hand, I can look them up if needed)
As you can see in the picture the tach has the wires for the lights (black and blue) and three...
