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Fundeck 196 Prop Pitch Dilemma
Just purchased a beautiful 2016 FD196 w/ Yamaha F115. It came with an aluminum 13 1/4 X 17 prop. I replaced it with a SS prop same dimensions.
Maiden voyage, WOT was 6800 rpm @ 35 mph. Yamaha says WOT should be 5800-6300.
I don’t pull skiers, just want to go as fast as possible at around 6000 rpm, so I need to increase the pitch.
If I increase to 19 pitch, everything I read says that will only reduce rpm by 400 rpm = 6400 rpm.
I plugged those numbers into Yamaha’s prop selector site and it said I should go to a pitch of 20 or 21.
The local dealer was less than useful and gave me wrong information.
Does anyone have any experience/suggestions, before I make such a large jump from 17 to 21 pitch?