Thanks for the suggestion of JB weld for patching my fuel tank. After cleaning up the mess caused by leaking 2-stroke fuel, I tried patching it, and it seems to have worked. I'll try filling the tank again in a few days, but it looks pretty solid. Apparently I was the last person to find out about this product. In talking to my marina's owner, I mentioned a leak, and he immediately told me to go buy JB weld. Good stuff.