Update: Looks like I spoke too soon. It runs "smoother" for sure. Better? No. Now after another start, it smokes like a female dog, and it still knocks. Maintaining the same speed it doesn't knock so much. But Once you open the throttle, it emits a fog of white smoke, and ever power stroke has a high-pitched loud fing knock. It may still run, but I would get the EPA called on me, not to mention I don't know how long it will last like this, and it is loud enough to make you go deaf. It survived a LOT of abuse. I WILL be disassembling it sometime in the next couple days to get a look at the damage.