Spark Plug: Adjustment

WARNING: This page is about a different variant/trim than selected.

Clean up the spark plug using nylon brush or equivalent. Clean and remove the carbon or oxide deposits. If deposits are too stubborn, replace the spark plugs.

NOTE:

Never use a plug cleaner.
Never use a metal brush because it makes insulator worn.

Spark plug gap L:

0.7 - 0.8 mm (0.028 - 0.031 in)

Fig 1: Identifying Spark Plug Gap

Courtesy of SUBARU OF AMERICA, INC.