76 Evinrude 200 trim help needed

[Keebibear]

Im in the process of swapping a 115 Merc for a 200 Evinrude I got a great deal on and as the 115 blew again didnt work so well. The Evinrude has 2 harness coming out of the side tube for the trim. One harness has 2 larger gauge wires with round ends and the other harness has 3 wires also with round ends. Which is which? Im thinking the harness with 2 wires is a power from the battery and the other harness with the 3 wires are the up and down wires. I have no wiring on it now for trim but the up and down button on the wheel from my old setup. Any help would be great and Thanks. 240819240820

[sixpac]

76 200 hp evin used a 3 wire tilt/trim motor [ black/blue/green ] 10ga or 12ga wire i believe, the other 2 married wires are the tilt/trim sender

[Keebibear]

Ok so Im assuming then one is a ground the the other would be up and down? Black ground and up blue and down green? Tilt/trim sender?

[samari]

Yep you got it, sender is just resistance so it doesn't matter

[djlinkdog]

I hav ethe same engine, they should plug into a relay box, and the two sets of wire harnnesses get hooked into to that box, the relay box has a 4ga pos & neg battery cables to power the trim system, as stated above. one harnness is trim blue up, green down, other wire harnness is for a trim gauge, out of the relay box, you will have 4 wire I believe, black ground, blue up, green down, and the other is the for the gauge, but you can still trim it out or in by putting " lets say green to neg and blue to pos". rev to trim other way, but I do not recommened running without the relay box,, good luck