74 Type1, No fuel from tank

Is there a fuel cut-off valve from the tank to the fuel pump? I am helping a friend repair an engine that had caught on fire. I added fuel to the carb bowl and the engine runs but will not pull fuel from the tank. When we re-installed the engine I removed the fuel filter over the rear axle and attached the steel carb tube directly to the fuel line. I have tried sucking on the line but keep getting a vacuum, no fuel. I even took off the filler cap to make sure it wasn't interfering with the fuel draw.
BTW, it was running fine before the fire, that is why I think there is an electrical switch controlling fuel from the tank.

There isn't any fuel cut-off in the fuel lines.

The fuel line goes from the engine to steel tubing through the tunnel, the out the front firewall. From there it goes into another rubber hose, into a fitting on the bottom of the tank.

Inside the tank there's a filter "sock". Anything clogged along the way will cause your symptoms.

You might try blowing compressed air into the fuel line from the engine to blow out any obstruction. You should replace the fuel hose from the tunnel to the engine. Heat from the fire may have melted it shut.

There is also a possibility that someone may have installed an electric fuel pump below the tank. Look underneath the front end and see if there's anything in the line from the tank to the firewall.

You might try blowing compressed air into the fuel line from the engine to blow out any obstruction. You should replace the fuel hose from the tunnel to the engine. Heat from the fire may have melted it shut.

There is also a possibility that someone may have installed an electric fuel pump below the tank. Look underneath the front end and see if there's anything in the line from the tank to the firewall.

:iagree: I would do the same