A sudden lack of fuel reaching the carburetor halted my attemt to drive off the trailer today. The first confirming test was to disconnect at carb and crank the engine... no gas. Okay, that was the second confirmation, the first being checking for fuel in the tank. I could see fuel in the pump (glass bowl) but it was not as high as usual. Removed fuel pump and filter (which I plumbed just in front of the pump) and tested the pump with a hose going into a tank of gas at similar level as pump. It tried, but never really drew much gas into its bowl. The action of the pump seems fine so I separated it and the diaphragm in the pump has no holes, but it does look checkered and old. Researching the rebuildability of this pump, I learned that some are rebuildable (pre 1963?) and some not (post). This is off a 1962-ish but I have no idea if it is the original pump. Is there a visual way to determine if mine is rebuildable? Follow-up questions assuming it is rebuildble: First, is this an easy task? Next, who sells good kits for these? And finally, is there something I am olverlooking in the diagnosis of a faulty fuel pump that might save me time and money? Thanks all!