I found it on Ebay. Tank was from a Pagsta Choppa. Not sure what years they made them though. It uses a Honda Rebel fuel tank and a special fuel valve, which I can only find from Treatland, a company that specializes in mopeds. Here's a link to the petcock https://www.treatland.tv/moped-motorcycle-petcock-14mm-p/moped-petock-blue.htm