ENGINE MANUAL
IAE50R – AA
Fitting other types of spark plug may cause damage to the
engine!
Do not sand blast, or clean with steel or brass wire brush, or
use abrasive materials!
If due to local conditions, the plug connections become corroded then the corrosion may be
removed from the plug nipple with a wire brush and the inside of the plug cap cleaned with a
dry cloth or paper wiper. When complete, re–smear the connections with fresh silicone
grease. Torque to the value given in 11.2.1. If the plug are unserviceable they should be
replaced with new ones.