40 hp yamaha screams like its out of gear in foward

[tnkc]

hi all , new boat owner, i have this 40 yamaha and today it ran fine until i went about half throttle at which time it seemed like it was in neutrel. it worked fine at lower speeds any thoughts. i am unsure on year model i am heading out to grab the codes now...
thanks
tnkc

 

[WillyBWright]

Re: 40 hp yamaha screams like its out of gear in foward

Sounds like a spun rubber hub in your prop. It can be replaced. Prop rebuilders do that.

 

[tnkc]

Re: 40 hp yamaha screams like its out of gear in foward

hey thanks since the prop is showing signs of wear (chipped and dinged) would it be a good idea to just replace it. and if so how do i determine the correct size and pitch..thanks again for the input

 

[Ray Neudecker]

Re: 40 hp yamaha screams like its out of gear in foward

Pull it and look at the stamping in the hub if it is a Yamaha prop.