I tried doing a search on the internet and this forum but couldn't find the info I seek. I will be taking possession of a made in Japan Yamaha metal 6.3 gallon gas tank. I don't know if the connection leaks or not. The gas gauge window is yellowed over so you can't see the indicator. Would anyone have a parts diagram of these tanks or the part numbers. I would need the level indicator window, the o rings for the valves, the welsh/core plugs and a new gasket if I have to disassemble it. Also a possible source for these items. I'm assuming since these tank is made in japan that they would be different parts than the USA made metal tanks. Thanks.