How to Remove Spark Plug From the Lawn Mower

Spark plugs are responsible for the sparks of energy flowing throughout the cylinder in a lawn mower engine. It is this spark that starts the lawn mower and provides an influx of energy required to properly operate. Without this spark the lawn mower will not start and will require replacement of the spark plug. 

Supplies:

• One new spark plug


• Spark plug socket


• Spark plug gap tool


• Rubber mallet

1. Disconnect the spark plug wire found on the side of the lawn mower engine from the spark plug. 


2. Remove the spark plug from the lawn mower engine using a spark plug socket.


3. Take the removed spark plug to a hardware store or department store of your choice. Buy a spark plug matching the removed spark plug. 


4. Ensure that a right gap is present between the bracket and the spark plug's sparking pin. Use a spark plug gap tool to create this gap if the gap is not present at the top of the spark plug. 


5. Install the new spark plug into the lawn mower engine. Tighten the spark plug into the lawn mower engine using the spark plug socket.


6. Reconnect the spark plug wire to the spark plug on the side of the lawn mower engine. Ensure that the spark plug wire is secure by tapping it into place with a rubber mallet. 


7. Start and test the lawn mower to ensure it operates properly. Cut a small area of your lawn during this test. 


8. Replace the spark plug yearly as recommended for your make and model of lawn mower.