Honda 400ex Spark Plug Socket Size
Overview
If you own a Honda 400ex ATV and need to replace the spark plug, it’s important to know the correct socket size to use. Using the wrong size socket can lead to damage or improper installation of the spark plug. In this article, we will provide you with the necessary information about the spark plug socket size for the Honda 400ex.
Spark Plug Socket Size Chart
To make it easier for you to find the right socket size, here is a handy chart:
| Model Year | Spark Plug Socket Size |
|---|---|
| 1999-2004 | 16mm |
| 2005-2009 | 18mm |
| 2010-present | 16mm |
Steps to Replace the Spark Plug
If you are unsure how to replace the spark plug in your Honda 400ex, follow these steps:
- Start by locating the spark plug on your ATV. It is usually located on the top of the engine cylinder.
- Using the appropriate spark plug socket size from the chart above, attach it to a ratchet or socket wrench.
- Gently insert the socket onto the spark plug and turn it counterclockwise to loosen and remove the old spark plug.
- Once the old spark plug is removed, inspect it for any signs of damage or wear. If necessary, replace it with a new spark plug of the same size and specifications.
- Apply a small amount of anti-seize compound to the threads of the new spark plug to prevent it from seizing in the future.
- Insert the new spark plug into the spark plug socket and carefully thread it into the engine cylinder by hand. Make sure not to cross-thread it.
- Once the spark plug is hand-tight, use the spark plug socket and ratchet or socket wrench to tighten it further. Be careful not to overtighten, as it can damage the threads.
- Finally, reconnect any wires or connectors that were disconnected during the process and ensure they are securely attached.
Conclusion
Knowing the correct spark plug socket size for your Honda 400ex is essential for proper maintenance and replacement. By following the steps outlined in this article, you can confidently replace the spark plug and keep your ATV running smoothly. Remember to always consult the spark plug socket size chart provided to ensure you are using the correct socket size for your specific model year.