Do you want to get the machine running or is this just an academic exercise?
To get the machine running:
If after an ultra sonic cleaning, you still believe that it's the carb that's giving you trouble then it's time to cut your losses and just buy a new carb.
From the model and carb part numbers given, you can buy a new carb from $27 to probably $50. OEM or aftermarket, the choice is yours. Search the usual places, Amazon, eBay, or your favorite parts distributor.
Academic exercise: Enjoy this forum and have fun.
-R