- Lubricate the threads of the spark plugs with a drop of oil. Install the plugs and tighten them by hand first. Take care not to cross-thread them.
- Tighten the spark plugs with spark plug socket. Do not apply the same amount of force you would use for a bolt; just snug them in. If a torque wrench is available, tighten to 15 ft. lbs. (25 Nm).
- Install the wires on their respective plugs. Make sure the wires are firmly connected. You will be able to feel them click into place. Check the spark plug cable routing and always make sure the plug wires are in the correct plug wire bracket.
