1. Remove the air cleaner cover and the air filter.
2. Locate the four spark plugs on the top of the engine. They are located in the center of the engine, near the back.
3. Disconnect the spark plug wires. To do this, pull the wire connector straight up off of the spark plug.
4. Use a spark plug wrench to loosen and remove the spark plugs.
5. Install the new spark plugs. Tighten them until they are snug.
6. Reconnect the spark plug wires.
7. Install the air filter and the air cleaner cover.
