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Propeller Sizing - Yamaha 50Hp Outboard 2018

Posted on 5/24/19 at 9:57 am
Posted by TimeOutdoors
AK
Member since Sep 2014
12120 posts
Posted on 5/24/19 at 9:57 am
Any experts out here? I have an 18' Pro V RH Boat (Used to be called River Hawk Boats) with a 50hp Yamaha outboard. It came with a 11 5/8 x 11 G prop but I want to get a couple spares. I also think that seems like a large diameter for this boat.. I wish I had asked the dealer about it.

Even though I bought it in March I don't know how well the prop actually works yet. The boat has to go on three different barges to make its way here so I hope to actually see it sometime in June.
Posted by DTRooster
Belle River, La
Member since Dec 2013
7952 posts
Posted on 5/24/19 at 1:56 pm to
That question cannot be answered until the boat is run with the normal load the same as proper engine height. Get it, load it and run it. The results will point you in the right direction
Posted by BFIV
Virginia
Member since Apr 2012
7706 posts
Posted on 5/24/19 at 2:48 pm to
Watch your tach when you change props. Don't want to blow that engine...
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