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!
Model number? Nothing else done? Rear tire not removed for flat repair? f top transmission belt is turning when engine is running, the unit should drive!
We have to work together! I was just trying to verify if that is the whole story. You don't have model number listed, I need to ask about the tires, and if transmission belt is tight!
I see question is still open. With top belt not turning, the drive pulley on the crankshaft of engine may not be turning, sheared key or loose pulley.