Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Prop advice for a 90 yamaha two stroke on an 1988 montauk

Posted by jaxmyth on 08/11/15 - 12:51 PM
#41

Joe ,my motor is now mounted two holes up, which is the third hole down in the upper set of holes, the bottom bolts are in the slots and I can adjust by raising the motor even further up to the lowest hole in the upper set of holes. Everything that I've read has said that the 13x17 pitch prop is the correct size. Not sure where a 19 pitch came from,but with my old 13x17k prop, 38 mph seems about right given my load and the water not being glassy. I would probably see 40 with lighter load and smooth water.