prop size

[mayjean123]

i have a 22 foot pontoon with a 1973 4 cly 65 hp 4 cly two stroke i need to konw if the prop is wright it has a 14 x 11p merc, prop it seems to run good but being my frist pontoon i don,t know i took the rpms up to 5200 but it seemed high so i backed it down to 4000 am i in the ball park with this prop thanks

 

[MH Hawker]

Re: prop size

Well you need to find the WOT rpm limit, but right off hand 5200 isn't bad, but it is different from motor to motor and you need to know exactly what it is. The prop is what limits the rpm.