Agreed, however, I knew that drive line was insufficient, it was what I had around the shop. As a side not I am considering making the system hydraulic drive eliminating the belt system as a whole.

@@9641277 why not just turn the gen head around and drive it with a lovejoy ? a hydraulic drive is more complicated - requires another operating system plus it's components, does not insure absolute rpm to keep frequency @60hz and creates the possibility of a more complicated breakdown while a lovejoy is a simple 1/1 shaft to shaft drive

On the generator I built I did have a lot of issues trying to direct drive with couplings but alignment is very hard to achieve belt-driven is the way to go just have to use a heavier belt I would also eliminate that electric clutch as that will slip over time.