Anybody have a source for replacement head gaskets for this bike? I see them on bike bandit but they don't indicate front vs. rear and I am not positive they are in stock. I have also seen some on here recommend Cometic. I have the heads from my '84 motor but I know some here would recommend against re-using these gaskets. If new ones are my best bet and will ensure the longevity of the motor I definitely want to do it the right way. Thanks. UPDATE: actually after looking at my '85 heads more closely it seems there is just a tiny tear on the surface of the gasket to where some of the copper is showing. The other head is fine. Do you all think this warrants a new gasket?