Spark Plug: Testing and Inspection

SPARK PLUGS INSPECTION
1. DISCONNECT HIGH-TENSION CORDS FROM SPARK PLUGS
2. REMOVE SPARK PLUGS





- Using a 16 mm plug wrench, remove the spark plug.
3. CLEAN SPARK PLUGS





- Using a spark plug cleaner or wire brush, clean the spark plug.
4. VISUALLY INSPECT SPARK PLUGS





- Check the spark plug for electrode wear, threads damage and insulator damage.
- If abnormal, replace the plugs.

Recommended spark plugs:
ND: K16R-U
NGK: BKR5EYA

5. ADJUST ELECTRODE GAP





- Carefully bend the outer electrode to obtain the correct electrode gap.

Correct electrode gap: 0.8 mm (0.031 in.)

6. INSTALL SPARK PLUGS





- Using a 16 mm plug wrench, install the spark plug.

Torque: 20 N.m (200 kgf.cm, 14 ft.lbf)

7. RECONNECT HIGH-TENSION CORDS TO SPARK PLUGS