PepBoys has in stock this gas filter, for $5.
I can't tell how big it is -- no specs are listed -- but there is room for a bigger filter than I have now, in my 50cc motorscooter. If the tube is too big for my hoses, I'll see that when I get there.
But I'm worried that maybe this requires a fuel pump to force the gasoline through the filter, and mere gravity won't do it.
Any chance of that? Do filters specifically for gravity feed exist? Is this one:
Pepboys also has other similar filters at the same pr eice.