APRILIA ETV MILLE CAPONORD - ETV MILLE CAPONORD ABS - 2006 Use And Maintenance Book page 349

6
4
For the check and cleaning:
!
CAUTION
This vehicle is fitted with spark plugs
featuring platinum-type electrodes.
To clean the spark plugs, do not use
wire brushes and/or abrasive products,
but only a pressurized air jet.
Key:
√ centre electrode (3);
√ insulating (4);
√ side electrode (5).
◆
Make sure that there are neither carbon
deposits, nor corrosion marks on the
e l e c t r o d e s a n d o n t h e i n s u l a t i n g
material; if necessary, clean them with a
pressurized air jet.
If the spark plug has crackings on the
insulating material, corroded electrodes,
excessive deposits or the tip (6) of the
central electrode (3) is rounded, it must be
changed.
0,6 0,6
3
5
!
CAUTION
When changing the spark plug, check
the thread pitch and length.
If the threaded part is too short, the
carbon deposits will accumulate on the
thread seat, and therefore the engine
may be damaged during the installation
of the right spark plug.
Use the recommended type of spark
plugs only, see p. 109 (TECHNICAL
DATA), in order not to compromise the
life and performance of the engine.
To check the spark plug gap, use a wire
thickness gauge (7) to avoid damaging
the platinum covering.
◆
Check the spark plug gap with a wire
thickness gauge (7).
!
CAUTION
Do not try to recover the spark plug gap
in any way.
_ _
0,7 mm 0,7 mm
8
◆
For the installation:
◆
7
◆
Spark plug driving torque: 20 Nm (2.0
kgm).
The spark plug must be well tightened,
otherwise the engine may overheat and
be seriously damaged.
Make sure that the cap (1) is correctly
connected to the spark plug (2). Due to
t h e v i b r a t i o n s o f t h e e n g i n e , t h e
incorrect position would cause the
disconnection of the spark plug cap,
with serious damage to the engine.
◆
NOTE
on the second spark plug of the same
cylinder and successively on both spark
plugs of the other cylinder.
◆
T h e g a p m u s t b e 0 . 6 – 0 . 7 m m ,
otherwise it is necessary to change the
spark plug.
Make sure that the washer (8) is in good
conditions.
With the washer on (8), screw the spark
plug by hand in order not to damage the
thread.
Tighten the spark plug by means of the
spanner you will find in the tool kit, giving
it half a turn to compress the washer.
!
CAUTION
!
CAUTION
Correctly insert the cap (1) in the spark
plug (2), until you hear the click.
Repeat the operations described
Put back the fuel tank, see p. 78
(REMOVAL OF THE FUEL TANK).
use and maintenance ETV mille Caponord ABS
93