Spark Plug: Testing and Inspection

INSPECT SPARK PLUG




a. Clean the spark plugs.
If the electrode has the traces of wet carbon, clean the electrode with a spark plug cleaner then dry it.

Air pressure: Below 588 kPa (6kg/sq.cm, 85 psi)
Duration: 20 seconds or less

Recommended Spark Plug:

b. Check the spark plug for any damage on its thread and insulator.
If there is damage, replace the spark plug.




c. Adjust the electrode gap.

Electrode gap: 0.7 to 0.8 mm (0.028 to 0.031 in.)