How To Remove A Lawn Mower Spark Plug

If you own a lawn mower, then you know that maintenance is crucial to keep it running smoothly. One of the most important things you can do for your lawn mower is to change its spark plug regularly. In this article, we will discuss how to remove a lawn mower spark plug.

Why You Need to Remove a Lawn Mower Spark Plug

The spark plug is an essential component of your lawn mower’s engine. Its purpose is to ignite the fuel and air mixture inside the combustion chamber. Over time, the spark plug can become dirty or damaged, which can lead to poor engine performance or even engine failure. That’s why it is important to remove and replace your lawn mower’s spark plug regularly.

Tools You Will Need

Before you start removing the spark plug, make sure you have the following tools:

  • A spark plug wrench or socket
  • A ratchet or breaker bar
  • A wire brush
  • A can of compressed air

How to Remove a Lawn Mower Spark Plug

Follow these steps to remove your lawn mower’s spark plug:

  1. Make sure your lawn mower is turned off and the engine is cool.
  2. Locate the spark plug on your lawn mower. It is usually located on the top or side of the engine and is connected to a thick wire.
  3. Use the wire brush to clean around the spark plug. This will prevent dirt and debris from falling into the engine when you remove the plug.
  4. Remove the spark plug wire by gently pulling it off the spark plug.
  5. Insert the spark plug wrench or socket over the spark plug and turn it counterclockwise to loosen it.
  6. Once the spark plug is loose, use your fingers to unscrew it and remove it from the engine.


Q: How often should I change my lawn mower’s spark plug?

A: It is recommended to change your lawn mower’s spark plug every 100 hours of use or once a year, whichever comes first.

Q: How do I know if my lawn mower’s spark plug needs to be changed?

A: Signs that your lawn mower’s spark plug needs to be changed include difficulty starting the engine, poor engine performance, and increased fuel consumption.

Q: Can I clean and reuse my lawn mower’s spark plug?

A: While it is possible to clean and reuse a spark plug, it is not recommended. It is best to replace the spark plug with a new one to ensure optimal engine performance.


Removing a lawn mower spark plug is a simple task that can greatly improve your lawn mower’s engine performance. By following these steps and changing your spark plug regularly, you can ensure that your lawn mower runs smoothly and efficiently for years to come.