If you think it is a fuel problem. Unhook the hard line that goes into the carburetor. Then put a great big old t-shirt underneath it. Disconnect the coil of course so that you get no spark. And have someone turn it over and crank it and see if you are getting the fuel pump pushing the fuel up to your carburetor. If you do then your carburetor line is not the problem.
Good diagnostics but let's assume FLPlum has limited experience with this method.
We don't want sparks while we have fuel splashing onto a T shirt. So either jump 12 volts to the yellow wire on the starter relay or disconnect the coil or disconnect the ignition or ground the high tension lead to crank the engine.
If you absolutely can not find a suitable T shirt, run the fuel line into a container.
