Check this. We are working on a 1973 Yamaha TX650, similar to the XS650, one of the things we are doing a carburetor service and one of the carbs has some issues. The posts that hold the float pin have completely dissolved! Some really ugly shit going on here. If you haven’t heard us talk about it before, stay away from fuel that has any amount of Ethanol. Ethanol is not your friend and it will corrode aluminum! This LINK will take you to the Pure Gas site, get the app on your phone!