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Fig. 116
Fig. 117
Protective equipment:
Special tool:
1.
Park the machine in secured condition
„Parking the machine in secured condition" on page 53.
2.
Allow the engine to cool down for at least 15 minutes.
3.
Pull off the spark plug connector (1).
4.
Clean the area around the spark plug.
5.
Unscrew the spark plug with a 16 mm spark plug spanner
(2).
6.
Check the condition of the spark plug, clean if necessary.
7.
In case of excessive combustion residues or burned off elec-
trodes, replace the spark plug
the spark plug" on page 79.
8.
Check the electrode gap of the spark plug with a feeler
gauge, if necessary, adjust the gap.
ð Nominal value: 0.6 - 0.7 mm (0.024 - 0.028 in)
9.
Carefully screw in the spark plug by hand.
10.
Once the sealing surface of the used spark plug is in contact,
tighten for another 1/8 to 1/4 turn with the spark plug
spanner.
DR7X
Maintenance – As required
n
Working clothes
n
Protective gloves
n
16 mm spark plug spanner
Ä Chapter 6.4
Ä Chapter 8.9.2 „Replacing
95
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