tach and other wiring

[willard887]

I bought a 1996 Johnson 50 controls and all. I hooked the tach up all system check lights come on then go off. All that checks out. I have two extra wires not attached to anything on the harness now. Are these for a voltmeter and trim gauge?

 

[Joe Reeves]

Re: tach and other wiring

It would help if you would describe the wires in detail..... color, stripes, whatever.

 

[willard887]

Re: tach and other wiring

OK Joe I will post info tomorrow. Thank you

 

[willard887]

Re: tach and other wiring

OK there are two sets of wiring one set is black, purple, white. The other set is black, purple, gray.

 

[Chris1956]

Re: tach and other wiring

Black purple grey are for a standard (not System Check) tachometer. Black is ground, purple is +12VDC for accessories. I think the white one is trim sender.

 

[willard887]

Re: tach and other wiring

So if I buy a trim gauge it will possibly work with the existing wiring?

 

[Chris1956]

Re: tach and other wiring

I would verify the motor has a trim sender and the white wire is the right one. Of course, a water pressure gauge is much more useful than a trim gauge, IMHO. You can trim by feel and sound.