1975 85593E Evinrude, wiring up a tach and voltmeter

[Big_mac4u]

Guys I need some help figuring out how to hook up a tach and voltmeter to my 1975 85593E Evinrude. I was told its pretty easy but I need a engine wiring schematic to complete it. I tired to find a free schematic online but i didnt have any luck finding one and any suggestions would be great.

thanks for looking

 

[bonz_d]

Re: 1975 85593E Evinrude, wiring up a tach and voltmeter

Was pointed to this same thing yesterday. Look at the top of this forum for TopSecretFiles. You will find them there.

 

[emdsapmgr]

Re: 1975 85593E Evinrude, wiring up a tach and voltmeter

There is already a grey wire for the tach signal stubbed out inside the control box. You'll have to pull the box apart to find it... Usually you can use the +, - source from other gauges under the dash. The factory left if there for subsequent tach hookup.