Remove the spark plug caps (1) from the spark plugs in both cylinder heads and remove the two spark plugs, making sure that no dirt or other objects enter the combustion chamber.
Caution! Check the gap between the central and side electrodes.
If the gap is not as specified or if the spark plug is soiled with heavy sooty deposits, renew it.
Refit the spark plug in the cylinder head, first tightening it fully by hand.
Tighten to the specified torque (Frame torque settings).
Refit the spark plug caps (1).
Caution! Do not use spark plugs with inadequate thermal rating or incorrect thread length. The spark plug must be securely installed. If a spark plug is loose, it can overheat and damage the engine.
Spark plug type:
- Make: NGK
- Type: DCPR8E
Alternative:
- Make: CHAMPION
- Type: RA6HC