Dan,

Thanks!

The motor mounts were custom fitted to this bike, (Point Beach Schwinn). The rear set was straight forward. As you mentioned the frame tube diameter is larger than the factory mount will accomodate. I tossed the cast rear mount all together and machined a new set that has the correct radius for the diameter of the frame tubing.

The forward mount was a different story, I had to plot the curvature of the frame and the relationship of the engine to the frame, (gap), in order to machine a piece that would follow the contour of the tubing and slide into the half moon cast into the engine. This mount would only work on bikes with identical frame geometry. I don't know how many models utilize the same frame. This would be a good question for the forum.

Jim