I have a 1980 100 h evinrude, the tilt trim was not working so I cut the wires at the switch and ran them to the battery (up<down), the motor went up and down so I guess this probably means the switch is bad because I tested at the end of the line? And can you tell me how to put oil in my tilt trim, when I loosened the relief screw to lower the motor it lost oil, and the oil was milky.