Spark Plug: Service and Repair

Removal

1. Remove the spark plug wires from the spark plugs.

NOTE: If an original spark plug is reused, install it in the same cylinder from which it was removed. New spark plugs can be used in any cylinder.

NOTE: Use compressed air to remove any foreign material from the spark plug well before removing the spark plugs.




2. Remove the spark plugs.
3. Inspect the spark plugs.
4. Clean the spark plugs with a wire brush or a professional spark plug cleaner (follow the manufacturer's instructions).

Installation




1. Adjust the plug gap as necessary.

NOTE: Apply Anti-Seize Lubricant to the lower three threads of the spark plugs. Do not allow lubricant to contaminate the spark plug electrodes or insulator tips.




2. Install the spark plugs.
3. Connect the spark plug wires to the spark plugs.