Originally Posted by bumpdraft (Post 245120)

. . . I then bought my current motor, a Yam F 225. I put the same prop on it and used it for several years before getting a Solas 4 blade. Since my motor operating range is 5000- 6000 rpm (really 5500-6000) and my motor then turned 6100 rpm, I figured that was close enough. I got to thinking about it and I asked my mechanic. He told me that the motor has a rev limiter at 6100 rpm. So now I'm thinking I could be under propped. By how much, I really don't know.