I wouldn't waste my time, I've seen several used in hillclimbers, some work and some don't. there are main issues as I see it, 1. the motor is way to wide with the clutch, at least 12" wider than a K5 motor, 2. getting the clutching right seems to be the biggest problem, make that 3 issues, the exhaust for a twin gets busy. I don't see the advantage.