1993 Force 70hp tach & unknown wires

neverdone

Recruit
Joined
Jul 16, 2013
Messages
3
Just picked up old pontoon boat, with 70 hp Force. Hasn't been used for several years. Tach appears hooked up, but won't work....thanks to forum, gonna check for corroded connections.
What are these two wires for, at the engine? they're not the trim.
wires3.JPG


What would these two wires have been connected to? Coming off the main wiring loom from motor?
wires2.JPG

wires.JPG

Here's the back of the tach with wires hooked up.

wires4.JPG

Thanks,
 
Last edited:

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,183
The1 wire is for the trim sender.
I think the other is for an oil system you don't have.
Mercury used a harness from their motors and it included wires for things Force doesn't have.

The tach is wired right.
Might not be any good.
 
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