Hello,
I have a suntracker with a 90hp 2 stroke. it had a 3 blade prop dont know pitch,, i was not getting over 3800 RPM. I then put a Solas 4-Blade Propeller, Pressed Rubber Hub / Aluminum, 13 dia x 15 pitch, RH on it (as this is the one my buddy has on his 22 foot landua with 2002 90hp merc)...