Repair manual

10 Maintenance
101 Replacing the spark plug
10.7 Replacing the spark plug
• The spark plug must be replaced if the ceramic insulator is damaged, or if the
spark plug electrodes are severely burned, very dirty or oily.
Note: Use only BOSCH WSR 6F, CHAMPION RCJ-6Y or NGK BPMR 7A
spark plugs as replacements.
The spark plug air gap must be 0.5 mm (0.020").
Using unapproved spark plugs can damage the ignition system.
Torque for the spark plug 25 Nm ± 2.5
• Turn the cover lock (6) to the "unlocked" position and carefully remove the
filter cover (7).
• Lift up the spark plug cover (8). Pull off the spark plug terminal cap (9) from
the spark plug. Remove the spark plug with the combination wrench included
in delivery.
DANGER
Do not touch the spark plug or spark plug connector while the engine is running
(high voltage).
Carry out maintenance work only when the engine is off.
Hot engine can cause burns. Wear protective gloves!