How To Change Lawn Mower Spark Plug

When was the last time you changed your lawn mower spark plug? It’s an important part of maintenance that ensures your mower starts smoothly and runs efficiently. In this article, we’ll show you how to change lawn mower spark plug in just a few easy steps.

Step 1: Gather Your Materials

Before you begin, make sure you have all the necessary materials. You’ll need a spark plug socket, a ratchet wrench, a new spark plug, and some anti-seize lubricant. You can find these items at your local hardware or auto parts store.

Step 2: Prepare Your Mower

To change the spark plug, you’ll need to access the engine. Turn off the mower and let it cool down completely. Then, disconnect the spark plug wire from the old spark plug by pulling it straight out.

Step 3: Remove the Old Spark Plug

Using the spark plug socket and ratchet wrench, turn the old spark plug counterclockwise to loosen and remove it from the engine. Be careful not to drop it into the engine.

Step 4: Install the New Spark Plug

Apply a small amount of anti-seize lubricant to the threads of the new spark plug. Then, carefully thread the new spark plug into the engine by hand. Use the spark plug socket and ratchet wrench to tighten the spark plug, turning it clockwise until snug.

Step 5: Reconnect the Spark Plug Wire

Push the spark plug wire onto the new spark plug until it clicks into place. Make sure it’s securely attached.

FAQs

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

A: It’s recommended to change your lawn mower spark plug every 100 hours of use or at least once a year.

Q: What happens if I don’t change my spark plug?

A: An old or worn spark plug can cause your mower to run poorly or not start at all.

Q: Can I use any spark plug for my lawn mower?

A: No, you should always use the specific spark plug recommended by your mower’s manufacturer.

Conclusion

Changing your lawn mower spark plug is a simple maintenance task that can greatly improve the performance of your mower. By following these easy steps, you can ensure your mower starts smoothly and runs efficiently all season long. Remember to always use the recommended spark plug for your mower and change it regularly.