Not just the fuel pump, but the carburetor's accelerator pump diaphragm and other gaskets. Fill the carb with new gas as suggested and let it sit for a while, or at a minimum don't pump the pedal as that might result in a torn accelerator pump diaphragm.When I finished my car I had rebuilt the engine first and stored it in a bag for 10 years. I basically did exactly what Woodchuck said and it worked great. I’ll also add if it hasn’t been said. It’s a good idea to replace the mechanical fuel pump if it’s been sitting on there just cause that’s a long time for the diaphragm to sit dry.