1972 evinrude model 50273C serial E06609 This motor is elec shift. Need wiring diagram or instructions as to what wires do what. have 2 purple, 1 purple/white, blue, white, brown, grey, red, black. I know the red is hot, black is ground, purple/white is choke, white is start, green is neutral. Can anyone help with the other wires? <br /><br />(edit) <br /><br />{having trouble finding a control box, used, that will work on this motor. Please help get me back in the water!!!!