I have a 02 40 hp merc (2 stroke) that came with a 13 p aluminum prop. My rpms are around 5300 and it will push the 16' boat between 31-34 mph. I want to go to a ss prop but unsure of pitch. I just put a 12 pitch ss prop on and tested it out and I dropped 300 rpms and a little bit of speed...
I have a 1985 40 hp Johnson that keeps sucking the primer bulb flat and I cannot figure out why! It will run fine for 5 minutes or so then the primer bulb goes flat and bogs the engine down. The time varies on when this will occur. <br />When I first purchased a good fuel line and got away...
