Re: Yamaha 115hp outboard
The best way is to try several props (with different pitch) in conditions described by rodbolt. Before that, make sure the engine height on the transom is correct make search for posts abut that matter here and on the General OB forum. The prop that allows you to run engines max rpm at wide opened throttle will be the ideal one. Obviously you dont have to run WOT after you choose your prop, thats just the way to make sure you have the right setup. Once you are all done, going in the 4000-4500rpm range will allow you save the gas.
