Spark Plug Check And Cleaning

CAUTION:

Do not attempt to adjust the gap of the iridium plug.
Cleaning of the iridium plug may result in damage to the iridium and platinum tips. Therefore, if carbon deposits must be removed, use a plug cleaner and complete cleaning within 20 seconds to protect the electrode. Do not use a wire brush.

Check the plug gap and replace if the limit is exceeded.

Standard value: 0.7 - 0.8 mm (0.028 - 0.031 inch)
Limit: 1.0 mm (0.039 inch)

Fig 1: Identifying Spark Plug Iridium And Platinum Tip
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.