8.10.3
Checking, cleaning the spark plug
NOTICE!
Danger of engine damage!
–
Do not use spark plugs with incorrect heat
value.
Protective equipment:
n
Working clothes
n
Protective gloves
Special tool:
n
13/16 inch spark plug spanner
1.
Park the machine in secured condition
‘Parking the machine in secured condition’ on page 57
2.
Allow the engine to cool down for at least 15 minutes.
3.
Clean the area around the spark plug.
4.
Unscrew the spark plug using a 13/16 inch spark plug
spanner.
5.
Check the condition of the spark plug, clean if necessary.
6.
In case of excessive combustion residues or burned off elec-
trodes, replace the spark plug
.
7.
Check the electrode gap of the spark plug with a feeler
gauge, if necessary, adjust the gap.
ð
Nominal value:
0.7 - 0.8 mm (0.028 - 0.032 in)
8.
Carefully screw in the spark plug by hand.
9.
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.
NOTICE!
Danger of engine damage caused by a loose
spark plug!
–
Always screw the spark plug in correctly.
Fig. 115
Fig. 116
Maintenance – As required
BPR 35/60
96
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