Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Engine model number? If you remove the spark plug and ground it, do you have spark? If it has spark, put a teaspoon of fuel direct into the spark plug hole, re-install the spark plug, and see if it will start for a few seconds. If it does, the carburetor is not letting fuel to the cylinder.
I see question is still open, did you find problem?