1984 Merc 50 Power Trim Wiring - Help!

groundshock

Cadet
Joined
Jul 5, 2012
Messages
16
Hey guys, quick question.

On this 84 Lund Mr. Pike (w/ 1984 Merc 50hp 4-cyl 2-stroke) that I've been working on, I have a 4-wire harness coming out of the throttle arm assembly, of which 3 of the wires go into a plug that plugs into the trim pump. There is a brown/white wire on this harness also that splits off and has a ring terminal on it. This terminal wasn't connected when I received the boat, just hanging there.

Should this wire be disconnected, and if not, where does it connect to? I've looked through what diagrams I have and they don't tell me anything. Search hasn't brought up much.

Help!
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,570
Re: 1984 Merc 50 Power Trim Wiring - Help!

The three wires should be red, blue and green. The brown/white wire is likely for a PTT Trim guage, which your motor doesn't have.
 
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