I have a Huasheng 49cc 4 stroke motor and I took of the carb because gas there was a over flow issue and I was attempting to fix that which I don't know if I did. But as I was tighting the 1 of the 2 bolts that hold in the air filter and carb and I tightened it to much and the head snapped off. I checked around the local stores and could not find anything similar. Emailed bike berry and I've yet to get response. If anyone could tell me where I could buy a replacement bolt or atleast something similar that would work that'd be great.