Anyone familiar with a yamaha 4hp, there is a wash screw, what is that used for, and I have tried to remove to check it out but it is very tight.
could sure use some help
on a 4hp yamaha outboard (the lower unit) there is a plunger pin that goes into the prop gear that pushes against a spring, which way does the pin go in towards the spring, tapered side or flat side?
