Spark Plug: Adjustment
Clean the spark plugs using a wire brush.
Clean and remove the carbon or oxide deposits. But do not wear away ceramic insulator at this time. If deposits are too stubborn, replace the spark plugs.
NOTE:
Do not use a plug cleaner because the spark plugs are applied with iridium tip.
Spark plug gap L:
0.7-0.8 mm (0.028-0.031 in)