70 HP Yamaha Propeller Question - Pitch and Size

[LawnOrnament]

I have a 15 foot Boston Whaler and just bought a new 70 HP 4-stroke Yamaha outboard. The marina asked me what propeller I wanted and am not sure. I want a stainless prop for sure but I want it to go as fast as possible. Any recommendations on propellers (pitch/size)?

Thanks!
Alex

 

[99yam40]

Re: 70 HP Yamaha Propeller Question - Pitch and Size

Might see if they have something close to your set up on here and what prop they used
http://www.yamahaoutboards.com/owner-resources/performance-bulletins

 

[Dhadley]

Re: 70 HP Yamaha Propeller Question - Pitch and Size

To answer accurately we'd have to know a little more about set up and what props you or the dealer has tried. Is the motor mounted all the way down? Jackplate? I'm a little surprised the dealer isn't more helpful.

Just off the top of my head I'd say we'll end up with something like a good 19" ss wheel. But we'd look at set up first. Load and intended use all play a big part.