Spark Plug Inspection

CAUTION:

For iridium type spark plug, do not touch the center electrode. The center electrode can be damaged if a mechanical force is applied.
For iridium type spark plug, do not clean nor adjust gap.

Check spark plug for the following points:

If any abnormality is found for iridium spark plug, replace with new spark plug.

If any abnormality is found for nickel spark plug, adjust air gap, clean with spark plug cleaner or replace with new spark plug.

Spark plug air gap "a"

Standard: 1.0 - 1.1 mm (0.039 - 0.043 in.)

Spark plug specification

Iridium type: NGK SILFR6A11

Nickel type: DENSO K16HPR-U11

Fig 1: Identifying Spark Plug Gap

Courtesy of SUZUKI OF AMERICA CORP.