I have not adjusted the chain yet. Out of the box, it seems too tight, but I am not sure what the actual recommendation on this is.
On previous bikes, I would clean and lube the chain almost daily, especially if riding in rain. I used a spray on chain lube which I aqcuired from a Honda shop, but I don't remember what it was called.
Actually, I am pretty uninformed when it comes to the chain on the zongshen, I am going to have to check the chain type when I get home, and research it. I suspect it to be an o-ring chain, I haven't dealt with any other types.