Removing the spark plugs on your Mazda RX-8 is fairly simple and can be done with a few tools. Before you get started, however, it’s important to disconnect the negative battery terminal for safety.
1. Begin by prying off the rubber spark plug cover. It should come off easily carefully.
2. Loosen the spark plug with the correct spark plug socket. This should be the correct size to fit the plug snugly without turning your wrist too much.
3. Slowly unscrew the spark plug, using a rotating motion. Once it is loose, remove it from the combustion chamber.
4. Once you have all the spark plugs removed, inspect each one for signs of wear or damage. If they look lightly worn or damaged, replace them with new plugs.
5. To reinstall the spark plug, begin by threading it into the combustion chamber. Hand-tighten it, being careful not to over-tighten it as this can cause damage to the spark plug threads.
6. Once the plug is in place, lightly torque the plug with a torque wrench to the manufacturer’s recommended level.
7. Replace the spark plug cover and reconnect the negative battery terminal.
Now you’re ready to start your Mazda RX-8. Following these steps should make the process of changing spark plugs easier.