Need help from Yamaha guys.

[3 Squids]

Here's the deal. I bought a 1990 150hp Yamaha motor from a guy and seen the motor run and tilt/trim worked. I made the deal with him and he pulled the motor off his boat the next day and I went and picked it up. He gave me another set of controls and oil tank as he was putting a 200 Yamaha on his boat.

I have a few wires and plugs I'm not sure where to put. The 10pin plug went right it. Motor turns over, choke works but the tilt/trim aren't. I can hear the relays clicking but the motor doesn't move. I took the blue wire straight from the motor and touched it to the 12v wire at the starter and it sparked like crazy and got very hot.

I have the + & - hooked up correctly. There are 4 wires that appear to be coming from the trim sending unit that I assume go to a gauge which I do not have. Could this be part of the problem?

Also the connector on the oil tank harness from the tank is a square connector. However there are no square connectors on the motor. Or is there a connector with the same color of wires. This is a project I'm looking to sell to buy some goodies for my new V so I really need to get this figured out quick and cheap. I'll attach some pics of the plugs on the motor. Maybe someone can help me out so I can get going on the V.

The black plug has a black, blue, brown? & gray wire. The green plug has a yellow, yellow/red, green, green/red.


These four wires come from the tilt/trim area. They are black, gray, orange and pink