Solve the problem by removing the carb, disassemble the carb, soak all of the carb parts, including the carb body, in gasoline for about 1/2 hour. Reassemble the carb. But before you install the carb to the engine, pour some gasoline into the engine and work it around by turning the crankshaft. This will prevent a dry start that can damage an engine.

Hint: Remember how the carb goes back together. Take some digital photos when you are taking it apart and you should not have any trouble putting it back together again.