- Inspect the electrodes and ceramic insulator.
Burned or worn electrodes may be caused by:
Advanced ignition timing
Fouled plug may be caused by:
Retarded ignition timing
Removal & Installation
- Disconnect the negative battery cable.
- Remove the ignition coil, as outlined later in this section.
- Remove the spark plug.
- Inspect the spark plug.
- Install the spark plug and tighten to 13 ft. lbs. (18 Nm).
- Install the ignition coil.
- Connect the negative battery cable.