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Thank you for allowing me to assist you, my name is Joe and I will be happy to assist you with your concern today.
"When trying to prime with the fuel pump lever it wont", I presume this has the mechanical fuel pump and that you have removed and are trying to manually work the arm? Disconnect tje output fuel line from the pump and with the pump arm being moved it should come out the output, if not there is a restriction, leak or bad fuel pump, with that said mechanical fuel pumps that sit for years are known to go bad and may need to be replaced. You can simply create a suction on the fuel pump input line and if you pull fuel with no loss and no air (once primed out) and nothing out would would then have shown the problem as the pump.
Thank you!- Joe
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Hi Fred, my name is Jason.
The engine needs 2 things to run, compression an fuel. If it will not prime with the fuel pump lever chances are the fuel pump has a bad diaphragm, as it should be pushing fuel through it. These engines will run on WD40, and burn it as a fuel. So start by removing the air cleaner, have a helper turn the engine over, and spray WD40 into the intake and let me know if the engine will start and run on that or not.