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!
When did it last run? If you have spark plug removed, hold finger over spark plug hole and see if it has enough compression to move your finger. If not, valve may be stuck, or piston may be damaged.