I have a late 80's mercury 35 hp oil injected. Serial number is ob134050. Boat has run fine until last week. Went to the ramp and it was only firing on one cylinder. I checked the coils and they are good. So I bought a switch box hoping that would do the trick. It fired one time with a pink...
I have what I believe to be a 1975 Mercury 115. When I bought it all internal wires on starter side of the motor were corroded. I replaced them all except the hot and ground wire. They were in great shape. I cleaned the carbs and and replaced the plugs. Hooked the battery up and turned the key...
