A lawn mower that turns over but doesn’t start can be a frustrating problem to deal with. There are several possible causes for this issue, and identifying the root cause is essential to getting your lawn mower running again.
In this article, we will explore some of the most common reasons why a lawn mower might turn over but not start, and provide troubleshooting steps to help you diagnose and fix the problem.
Fuel-Related Issues:
One of the most common causes of a lawn mower that turns over but doesn’t start is a fuel-related issue. This could include problems with the fuel supply, such as an empty fuel tank or clogged fuel filter. To check for these issues, start by checking the fuel level in your lawn mower’s tank.
If the tank is empty, fill it up with fresh fuel and try starting the mower again. If the fuel filter is clogged, it can restrict fuel flow and prevent the engine from starting. To check the fuel filter, locate it in the fuel line and inspect it for any signs of blockage.
Spark Plug:
Another common issue that can cause a lawn mower to turn over but not start is a faulty spark plug. The spark plug is responsible for providing the spark that ignites the fuel in the engine, and if it’s not working correctly, the engine won’t start.
To check the spark plug, remove it from the engine and inspect it for any signs of wear or damage. If the spark plug is worn or damaged, it will need to be replaced.
Air Filter:
A dirty air filter can also cause a lawn mower to turn over but not start. The air filter is responsible for keeping dirt and debris out of the engine, and if it’s clogged, it can restrict air flow and prevent the engine from starting.
To check the air filter, locate it in the air filter housing and inspect it for any signs of dirt or debris. If the air filter is dirty, it will need to be cleaned or replaced.
Carburetor:
A clogged or dirty carburetor can also cause a lawn mower to turn over but not start. The carburetor is responsible for mixing the fuel and air in the correct ratio for the engine to run properly. If the carburetor is clogged, it can restrict the fuel flow and prevent the engine from starting.
To check the carburetor, locate it on the engine and inspect it for any signs of dirt or debris. If the carburetor is dirty, it will need to be cleaned or rebuilt.
Conclusion:
There are many potential reasons why a lawn mower might turn over but not start, from fuel-related issues to spark plug and air filter problems. By following the troubleshooting steps outlined in this article, you should be able to diagnose and fix the problem with your lawn mower. If you are still not able to get your lawn mower started, it may be best to consult with a professional for further assistance.