Commdiver77
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New owner, never had a pontoon or outboard, owned a couple mastercrafts and props and pitch were not a worry. My current set up that I bought it used with is a 90hp Yamaha 2 stroke with a 13.5 x 16 on it. GPS tops speed 18mph and max rpm at wot 3400. I know this motor should run wot around 5500-6000 according to what I have read. My question what diameter and pitch would give me around 20-23 mph and 5500-6000 rpm?