I have a 2004 with a Yamaha F115 4 stroke. Outboard weight is 414 pounds. Takes off OK but not bad. With 1/2 tank of fuel, minimal gear (cooler, tackle, etc), and just me on calm seas I get up to 42MPH at 5800 RPM on the gps. It will go to 6K with a little more trim so I might have 1 more MPH...