MOTO GUZZI NORGE 1200 Manual page 78

3
CAUTION
Even if only one outer spark plug (1)
needs replacing, always change both.
WARNING
Before carrying out the following
operations, let the engine and the
s i l e n c e r c o o l d o w n t o a m b i e n t
temperature to avoid burns.
The following procedures apply to both
cylinders.
78
use and maintenance Norge 1200
4
Removal:
u Remove the spark plug cap (3).
Remove any trace of dirt from the spark
u
plug base.
Fit the special socket included in the tool
u
kit to the spark plug.
Insert the spanner (4) included in the tool
u
kit into the hexagonal seat of the spark
plug socket.
Unscrew the spark plug and remove it
u
from its seat, making sure no dust or dirt
can fall into the cylinder.
8
6
Inspection and cleaning:
CAUTION
Do not clean the spark plugs with a wire
brush and/or abrasive products, use
compressed air only.
Key:
√ centre electrode (5);
√ insulator (6);
√ side electrode (7).
Check electrodes and insulator for
u
carbon deposits or traces of corrosion
and blow them with compressed air if
needed.
Always change a spark plug which has a
cracked insulator, corroded electrodes,
excessive deposits or when the tip (8) of
the central electrode (5) is rounded from
wear.
5
7