How To Troubleshoot Lawn Mower Not Starting. It can be due to no gas or stale gas in your tank. The best way to check is to confirm that you have fresh gas in the fuel tank.

The bottom should be wet with fuel. Remove the top of the lawn mower for easier access to the working parts. Gas Problems Some of the times lawn mower may not start due to gas problems.
10 Top Troubleshooting Tips for Small Engines.
If it is wet and the mower still wont start you may need a new spark plug. Fuel Not Reaching the Engine. Check it out clean off debris re-connect and tighten. If your lawn mower wont start there could be a few potential issues.

