M.T.,
The clutch is going on the Sportsman Flyer pedal crank where Pat's sprocket set up goes. This way I'll be able to pedal start the bike. The motor doesn't have any easy way to start it other than wrapping a belt around the flywheel and pulling it.
The 3D Motorsport clutch is made to go on the engine originally. Brian added bearings to the clutch so that it can turn freely on the jack shaft.
He built a extremely nice Harley Davidson bike with a 1947, 4hp Briggs and Stratton engine. He said it runs at 45 to 50 mph with the gearing it has. I'll look up the video of him starting it and add it.
Steve.
https://www.youtube.com/watch?v=Yx81T7GPtOs