Best prop for Yamaha 8HP? - BoatBanter.com

ocj

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Best prop for Yamaha 8HP?

Does anyone know how to determine the best prop for a Yamaha outboard,
8hp, short shaft on a 900 lbs speedboat.
Currently I use a 8.5(diam.) 8.5(pitch) N type propeller, but it feels
like the optimum rpm (5000) is not reached.
Any advice welcome. Thanks!

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