Originally Posted by Fenlander
Pitch is printed on the back of one prop blade.
I think the vibration is worse to some extent with the larger moving mass of the engine internals on the 20 vs the 6. As Jeff says the 25 has the offset crank starting to smooth out the mechanical imbalance... as well as the smoother power pulses of 3cyls.
Thanks for the info re the prop. And yes, I think you're right about the larger 20's extra vibration compared to the 6. But I'm still happy with my decision, as the extra power is great, the extra vibration not a real problem, and I know I wouldn't want anything any heavier than the 20.