Does it still have good compression or even stronger after being ran?
Did you check the reeds with a light?
Did you check the reed base or back, the side that mounts to the engine, on a flat surface with a light? And the side that the carb mounts to?
Have you tried placing hand over carb inlet to see if there was suction? This is an easy way to see if the reeds are working on the intake.
The carb will pump fuel whether the engine sucks it in or not.