Good advise Kay. I was going over the service records. I was hoping that my friend had overhauled the engine, but that doesn't look like the case. If I do, I'll look into the 900 cam. A lot of other stuff was done, including two carb rebuilds/cleanings, fork rebuilds, brakes, rotors, etc. My friend got clipped twice by cars when he lived in Milwaukee, but no structural damage.