My Land Rover had a wire strainer at the… "fill hole"? to the tank. It kept crud out and made a pretty good water separator. My dad was a pilot back in the 40's. After getting a good spook from some bad gas, he'd filter fuel through a chamois. You do not want to get bad gas when you're flying.
This thread has moved me to thinking I'll make a wire mesh insert for my bike. Should be pretty cheap and easy. Might even be useful
