just wondered if anybody could help!! my engine is a mercury 9.9 hp 1987 model. it works fine going forward and in neutral, but when i put it in reverse it makes the right sound and everything but its not making the prop spin fast enough!!! i think the linkage is ok too!!!
Check the prop hub. Whats the history, ie did you have the water pump changed? did you hit a rock. Did it just suddenly start doing it, or did it happen over a gradual period of usage.
Mercury 9.9 hp no reverse
Linear Mode
