The main chain is very sloppy and hitting the case (hence the metal particles we found. All plug holes need to be heli-coiled, there is smoke from #3, it really looks bad for this engine. I think the best course of action at this point is to wait around for a wrecked bike with a good motor. Been riding the other 750 around, and it's really great. Not scary, but plenty of power anytime you twist the throttle. Feels nice. I would love to find another Kaw 750 motor, but anything comparable will do...... if anyone comes across a local complete engine that is known to be in good working order, let me know....