'88 Yamaha Tach Wiring Colors??

[wood2turn]

I have an '88 Yamaha CV85 2-stroke.

After all these years I'm finally going to add a tach to the dash. But I don't know the wiriing color codes...Can anybody fill me in?
I think it's the 3 wires that are deadended in the harness at the control box but I still don't know which is which...except for ground.

ANY help would be appreciated,

Thanks,
Terry B.

 

[99yam40]

Re: '88 Yamaha Tach Wiring Colors??

I am not sure about 1988 models but,Yamaha tach signal is normally green, Switched power is yellow. Back is ground, and Red is 12v positive not switched.

 

[wood2turn]

Re: '88 Yamaha Tach Wiring Colors??

SUCCESS!!!!!

You are correct '99. But I did it before reading your post. I located the color codes online and went with them.

Thanks, Terry B.

 

[cwhitlock]

Re: '88 Yamaha Tach Wiring Colors??

Does anybody know what the green wire inside the motor connects too?

 

[RICOSUAVE7777]

Re: '88 Yamaha Tach Wiring Colors??

So what are the two wires for tach?