* Fuel Line: Ensure that the fuel line from the fuel tank to the carburetor is not kinked, blocked, or disconnected. Any restrictions in the fuel line will prevent fuel from reaching the carburetor, causing the engine to stall. Check and replace the fuel line if necessary.
* Carburetor: The carburetor is responsible for mixing air and fuel for the engine. Check the carburetor for any visible damage or clogging. If the carburetor is dirty, it may need to be cleaned or rebuilt.
* Air Filter: A clogged air filter can restrict the airflow to the engine, causing the fuel mixture to become too rich. Clean or replace the air filter as needed.
* Spark Plug: Check the spark plug to ensure it is clean and has a good spark. A worn or damaged spark plug can cause the engine to run rough or stall.
* Fuel: Ensure that you are using fresh fuel. Old fuel can become stale and lose its combustibility. Drain and replace the fuel if it has been sitting for a long time.
* Choke: Check if the choke is stuck in the closed position. A closed choke can restrict airflow and cause the engine to stall. Ensure the choke is fully opened when the engine is running.
If you have checked all the above mentioned items and the problem persists, it is recommended to take your lawn mower to an authorized service center for further diagnostics and repairs.