Big thanks to mill$civic on this write up!



How to install spark plugs

1. Make sure you have all the right tools.
- New spark plugs
- Spark plug gapping tool
- Torque wrench
- Ratchet with extensions
- Spark plug socket (16mm)
- Anti-seize compound
- Cloth


2. Clean around the plug wire to prevent dirt from falling in once plug is removed.




3. Pull out the first plug wire, do one spark plug at a time.




4. Use spark plug socket with the ratchet to take out the spark plug, turn counter clock wise, they might be a little tight depending how long they have been in there.




5. Match up the old spark plug with the new to make sure you have purchased the correct
ones.




6. Use the gap tool to gap the spark plugs to the recommended size. Each Honda engine is different. The gaper should slide between the electrodes with little drag, bend the side electrode only to set the right gap and be very careful not to crack or chip the porcelain insulator surrounding the center electrode.




7. Apply a small amount of anti-seize to the threads of the spark plug. (Some spark plugs to not recommend anti-seize, see package for details)




8. Reinstall the spark plug by placing it into the spark plug socket and using your hands and the extensions to slowly turn the spark plug in. DO NOT USE RACKET TO INSTALL SPARK PLUGS. DO NOT USE FORCE IF THE SPARK PLUG IS NOT GOING IN, TAKE IT OUT AND TRY AGAIN. If you force the spark plug in you might be cross threading the threads which will cost a lot to fix.




9. After you have turned the spark plug as far as it can go with your hand, use a torque wrench to tighten the spark plug to spec. It will say in your manual how much you need to torque it to.




10. Reinstall the spark plug wire and move on to the next spark plug. One at a time.

11. Test drive.

I hope this helps someone out.