How do you change the spark plug on Honda jazz?

To change the spark plug on a Honda Jazz, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the ignition coil or spark plug cover to access the spark plugs. Use a spark plug socket and ratchet to carefully unscrew the old spark plug, then install the new one by hand to avoid cross-threading, and tighten it to the manufacturer's specifications. Finally, reconnect the ignition coil and the battery terminal.