Tiburon L4-1.8L (1997)
Spark Plug: Testing and Inspection
CHECKING SPARK PLUG
1. Disconnect the spark plug cable from the spark plug.
CAUTION: Pull on the spark plug cable boot when removing the spark plug cable, not the cable, as it may be damaged.
2. Using spark plug wrench, remove all of the spark plugs from the cylinder head.
CAUTION: Take care not to allow contaminants to enter through the spark plug holes.
3. Check spark plugs for the following:
1. Broken insulator
2. Worn electrode
3. Carbon deposits
4. Damaged or broken gasket
5. Condition of the porcelain insulator at the tip of the spark plug.
4. Check the spark plug gap using a wire gap gauge, and adjust if necessary.
Standard value: 1.0 - 1.1 mm (0.039 - 0.043 in.)
