did you check the float height on the carb when you cleaned it? and make sure the float valve isnt sticking or hanging up slightly in the seat?
also pull the fuel line off the carb and put it in a water bottle and turn the fuel valve on, let it fill up the bottle then shut off, if there is little to no flow you either have a clogged screen on your tank valve, or a clog on the line, or possibly a bad gas tank cab check valve not letting air enter the tank as the level drops.