The carb is most likely a Chinese copy of a Walbro with the Tillotson name cast in the pump cover?

There's been some established people respond to this thread.

Besides the carb not pumping, it has not been established by the owner, or his friend, that the engine itself will run?

If the engine has crankcase integrity, compression, and properly timed spark, it should at least run in a short spurt from a prime?

Not only should the carb pump fuel, the fuel must be regulated by the metering valve and diaphragm.
I check that the fuel line will, in fact, draw fuel by using my refueling pump?
I have the ability to check the operation of the metering valve - mainly, that it will hold pressure, and that it will release the pressure. You can do that with your refueling pump and by
listening to it.