Actual HP of a Yamaha F150

[NCLakeboater]

I was told by one dealer that a new Yamaha F150 actually puts out about 167 hp instead of the stated 150 hp. Is that something others have heard?

 

[JB]

Re: Actual HP of a Yamaha F150

Some folks just have to tell you something you didn't know, even if it is nonsense.

Not likely. NMMA allows +/- 10%. An extra 17HP would exceed that.

Any given Yammy 150, on a Dynamometer, would deliver something between 135 and 165HP to be legally called a 150. Most of them would be very close to 150HP.

The same is true, of course, of any 150HP outboard made after the mid 80s, by any brand.

 

[NCLakeboater]

Re: Actual HP of a Yamaha F150

Thanks that seemed a little high to me.