If you din't drain the gas out and then run the generator unti lit is dry the gas will clog up the carburator. You may be able to remove the bowl and spray carburator cleaner into it and try to get to the top where the air enters the carburator and spray carburator cleaner into it.
Wait about 1/2 hour for the cleaner to work and then put some 89 octain gas in the tank.
Before you try to start it check the linkage to the carburator. The poroblem I had was only that I needed to spray some WD40 on the linkage. The rods oxidized and didn't allow the choke plates for gas and air to move freely. I knew the carburator was OK since I had drained it. Once the linkage (little rods) moved freely the generator started right up.
