I am looking to up grade my current prop. I have a 1989 Yamaha 150hp OB. It is on a 89 Lund Tyee 1850. The current prop is aluminum and the only stamping on it I can find is 23-m. Is this a 23 pitch prop?
I am looking to get more top end out of it. I currently get about 42-44 MPH @ 4300 RPM at...