Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hello Paul. Thank you for choosing Just Answer. My name is***** would like for you to try something, when you have an opportunity. Remove your spark, then turn your key to spin your engine. Let's see if your engine will spin freely, without your spark plug inserted. Make sure your spark plug wire is not in front of your spark plug hole, in case gas spews out.
If your engine spins freely, then it is very likely that your valves are out of adjustment.