I bought a used 75 HP johnson with tilt and trim after mt 50 died, and I dont have the harnes to use for the tilt and trim. I bought a switch that had 1 blue 1 green and 1 purple wire. It said to connect the wires blue to blue green to green and purple to the battery. Does not work. Although if I ground the blue or green and apply power to the one not grounded it works. Is there any way to make the switch with three wires work! Or do I have to buy a harness?<br /><br />------------------<br />Good Fishing<br />Ray