Please help me prop my Yamaha F-150

hosmer

Recruit
Joined
Jun 25, 2016
Messages
4
I currently have a 2007 Stratos 486sf which is their fish and ski I have a Yamaha 150 powering the boat with a 21 pitch Mercury trophy plus prop I get 55 miles an hour GPS but it is running a four bladed prop and I'm getting a lot of wash out the back because it's not the proper diameter I would like to go to a Yamaha version of a Mercury Tempest three bladed I'm interested in more top-end any suggestions thanks. Also forgot to mention I am turning 5800 RPMs wide open throttle
 

Sea Rider

Supreme Mariner
Joined
Sep 20, 2008
Messages
12,345
A lot of wash means water is splashing backwards or over middle transom ? If so, need to raise OB till wash disappears completely. If that OB revs wot at 6K, you're OK with 5800 revs as currently loaded.

Happy Boating
 
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