Well, got it running this past weekend. It does not run as smoothly as I think it should. It has a pretty bad vibration coming up to speed that does not go away. I pulled the generator off it, pulled the injector, rotated by hand and can't find anything wrong. I'm going to try to pull the flywheel off this weekend and check behind it for problems. Anyone have any idea how smooth one of these should run? I have ordered a photo tachometer to make sure I'm not overspeeding it. Thanks, Kyle