Carburetor Floods When Trying to Start Mower?

I just purchased a used Huskee riding lawn mower. First, it was not starting, I cleaned the gas line and filter and it started just fine, but now the carburetor floods everytime I trying to start. It seems it is sucking too much gas to the carburetor. What could be wrong? Any suggestions before I haul this machine to a repair shop?

By brij from Colorado Springs, CO