Small Engine Troubleshooting Problems? Ask a Mechanic Now.
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Remove your spark plug, then check to see if your engine will spin freely. If your engine will spin freely after you remove your spark plug, then it is likely that your valves are out of adjustment.
We can continue from here.
I am back with you. Sorry for the delay. What brand is your engine? Single cylinder, or twin cylinder?
Thanks for this information. Have you check your oil level to see if it is too low? Many times if your engine will not spin freely after you remove your spark plug, our problem could be caused by a broken connecting piston rod, or a loose magnet under your flywheel, that is wedging between your flywheel and the stator/alternator underneath your flywheel.
Yes, your flywheel should spin freely all the way around, when your engine is working properly.
Have you tried spinning your flywheel by hand, after you have removed your spark plug?
Here are three things you can check:
You can remove your spark plug, and insert a screwdriver into your spark plug hole, to feel for movement of your piston, as you rotate your flywheel.
You can also look for a crack in your engine block, near your electric starter.
Let's hope our problem is a loose magnet, rather than something internal.
You are very welcome! I look forward to knowing your results.
Thank you for checking. Are you familiar with removing your flywheel?
Look for loose magnets under your flywheel, after you remove it. If all of your magnets are intact, then you likely have internal damage inside your engine.
You are very welcome!
Thank you for checking.
This leads me to believe that our problem is internal.