need help wiring rpm, volts, trim, and fuel gauges and trim motor on 78 evinrude 115

bankbuster

Petty Officer 2nd Class
Joined
Jun 3, 2011
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107
Well....First off....I love this site! I've already used this forum many times in just the last few weeks. Just registered and here goes first post.

PLEASE HELP--- Restoring a 1983 Hydro Sports SX-275 with a 1978 Evinrude 115 V4 2-stroke (model# 115899C).

The WIRING is a real mess........mainly all the gauges---voltage, fuel, rpm, and tilt/trim.
I guess I will start with the trim.

Problem1) Tilt/Trim Wires: The main harness has 3 wires coming from tilt motor---Green, Blue and Black. The harness looks good and has not been spliced into. Where do these wires go? Control box, guage or solenoid? There is another cord coming from the tilt motor (it really looks like a regular cord (black) from a house lamp or something). Where does that go? Its just 2 wires...Could that be an add-on for the second trim switch that was mounted on the bow? The other trim switch is on the OMC Control Box handle. Not sure if that trim switch even works.

Once I figure the trim thing out I will update post and ask more dumb questions.
I want to start the motor but I have too many cut, missing, and/or dissconnected wires...I dont want to cause more problems or a fire! Alot of wires have been sliced and jumper leads added (i assume for accessories??) but most are disconnected. I just want to start slow and fix or replace wires and/or gauges 1 at a time. If I knew where everthing went it would be a piece of cake....but its a real mess!
We are tired of busting the banks and I am tired of hearing my son ask "Dad, when will we be able to get a boat and get out on the water?" So I bought what I could afford...a project.

Thanks in advance for any and all advice/suggestions.
 
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