Originally Posted by alystra
what is the performance like as i am unsure that the bf75 will have enough oomph
Max speed I've managed, with a lot of gear aboard, (camping stuff, boat tent, 80 litres fuel, heavy ground tackle) is 39 knots. I hardly ever go there.
I changed the prop to a Solas Rubex 13.2 x 19 inch pitch. This is perfect for the boat as I use it, but with four people aboard including me, she takes a while to get over the hump and on the plane. With five hefty passengers plus me, she won't get going. Even at full throttle, the revs. won't climb high enough to get any power.
However, with the supplied Honda 17 inch pitch prop she took off like lightning, was under propped for my usual load, and would have probably managed the five heavy chaps quite well. It's that experience that makes me think that, compared to the Mercury, this engine doesn't have as much torque at low revs. At medium and high revs. I think the Honda is better and more responsive - but that may be because it's the engine I chose.