Spark Plug Check And Cleaning

CAUTION:

Never attempt to adjust the gap of the iridium plug.
Do not attempt to clean the spark plug because it may result in damage to the electrode. However, if carbon deposits must be removed, using a plug cleaner, complete the cleaning within 20 seconds to protect the electrode. Do not use a wire brush.

Fig 1: Identifying Iridium Tip

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: As the prospective distance for this spark plug replacement is 168,000 km (105,000 mile). If the plug gap and insulation resistance are normal, check the plug state and clean it if necessary.