Pulled flywheel from 85 90:-P johnson and cleaned timing advance and applied lite coat of bearing grease to bottom, also replaced water pump. It started right up and ran at idle for about 15 seconds and then revved wide open by itself. What have I done wrong.
I have a motor that has no identification,has90hp cover. I'm trying to replace the water pump.The water pump housing has a number 389643 and an M separate from the number. I can't find this anywhere. Could anybody help me.
I'm new. I have a1985 115hp johnson and with spark plugs removed while rotating flywheel I get binding and a scrubbing noise, can't tell where noise is coming from.