Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Remove the spark plug, and with plug grounded to the metal , crank and look for spark. If it has spark, out a teaspoon of fuel direct into the cylinder, re-install spak plug and see if it will start for a few seconds,
If it starts and dies, the carburetor is not letting fuel to the engine and the carburetor needs cleaning. Be sure you have fuel to the carb!