hey, new guy here. bought a tw200 about 6 months ago with a rusty tank, put a clarke tank on it and cleaned the rust out of the carb. put the tw in the back of the garage for a few months go to pull it out and the cap is broken. Google tells me this is common and even if i get a new one it will brake too. So I saw tusk makes a clarke tank cap and some guys claim to be using a 17620-KT1-780 which is a honda xr650r cap. anybody have any guidance on this what direction should I go?