Skip to content
Home » Stihl Chainsaw Spark Plug Socket Size Guide

Stihl Chainsaw Spark Plug Socket Size Guide

    Stihl Chainsaw Spark Plug Socket Size

    What is a Spark Plug Socket?

    A spark plug socket is a specialized tool used to remove and install spark plugs in various engines, including those found in Stihl chainsaws. It is designed to fit over the spark plug, providing a secure grip and allowing for easy removal or installation.

    Importance of Using the Correct Socket Size

    Using the correct spark plug socket size is crucial to ensure a proper fit and prevent damage to the spark plug or the engine. Stihl chainsaws, like many other engines, require a specific socket size for their spark plugs. Using the wrong size socket can lead to stripped threads, rounded edges, or even breakage of the spark plug.

    Stihl Chainsaw Spark Plug Socket Size Chart

    To help you determine the correct spark plug socket size for your Stihl chainsaw, refer to the following chart:

    Stihl Chainsaw Model Spark Plug Socket Size
    MS170, MS180, MS210, MS230, MS250 19mm (3/4″)
    MS260, MS290, MS310, MS360, MS390 13/16″ (21mm)
    MS440, MS460, MS660 3/4″ (19mm)

    Steps to Remove and Install a Spark Plug

    To remove and install a spark plug in your Stihl chainsaw, follow these steps:

    1. Ensure the chainsaw is turned off and the engine is cool.
    2. Locate the spark plug wire, which is usually black and connected to the top of the spark plug.
    3. Using a spark plug socket with the correct size, place it over the spark plug.
    4. Gently turn the socket counterclockwise to loosen and remove the spark plug.
    5. Inspect the spark plug for any signs of damage, such as fouling or excessive wear. If necessary, replace it with a new one.
    6. Apply a small amount of anti-seize compound to the threads of the new spark plug.
    7. Insert the new spark plug into the spark plug socket.
    8. Carefully thread the spark plug into the engine by hand, ensuring it is properly aligned.
    9. Once hand-tight, use the spark plug socket to tighten the spark plug clockwise until snug.
    10. Reattach the spark plug wire to the top of the spark plug.

    Conclusion

    Using the correct spark plug socket size is essential for maintaining the performance and longevity of your Stihl chainsaw. By following the recommended socket size and proper installation steps, you can ensure a secure and reliable connection between the spark plug and the engine. Remember to always refer to the manufacturer’s guidelines and consult a professional if you are unsure or encounter any difficulties.