I just spent $500 having the carburetors on my 90 hp Mercury rebuilt. The issue was a white substance that was in my fuel tank. I'm trying to figure out what the heck it is. It has to come from a filling station since that is the only place I have every gotten gas. Take a look of the pictures of the inside of my gas tank and tell me if you have any ideas what this is so it doesn't happen again.
Thanks
Thanks