Prop Size 235 WA

[dbinding]

I've run 2 different props so far.  4 blade aluminum 14.5 x 18 WOT 6100 RPM and 35 MPH.       3 Blade Yamaha 15 1/4 x 17  5700 RPM, WOT 32 MPH.  2004 Yamaha F225.  

I feel I should be getting more speed . Any advice on prop change?

[freezerfiller]

I would first make sure your engine isn't too low. I'd think you should get close to 40 mph.

[gnrphil]

I agree with freezer, should be doing better than that.