Pls post the carburetor numbers so I know what I am discussing here. Also what did do to clean it. These cube carburetors are rather delicate to work on ie no wire probing or harsh carburetor cleaners should be used. Hopefully this not one of the rotary carburetor which can be a pain to get repaired and working right.
It sounds either engine starving for fuel or you might have a plugged spark arrester where the engine can not breathe. Both can present the same symptoms. So first either remove the spark arrester or the complete muffler and try it.
When to come carburetor there a couple initial adjustment that must done after disassembly while you are installing either a GND (gasket and diaphragm) or complete carburetor kit. First is the metering lever must set at the proper height the model carburetor in question and set the will start mixture screw(s) setting. Mixture screw setting is usually 1-1/2 turns from lightly seated.Once you start the engine then carburetor will need fine tuning.
