VENT
125 Baja + Baja RR /
VENT
125 De Derapage RR
43
2
1
2
6
5
4
3
use and maintenance manual
Spark plug
Periodically disassemble the spark plug,
clear it from all carbon residues and replace
it if necessary.
WARNING
Before moving on to the next opera-
tions, allow the engine and the silencer
to cool down to room temperature, to
avoid the risk of burns.
- From the right side, remove the boot (1)
from the spark plug (2).
- Remove all traces of dirt from the base of
the spark plug.
- Unscrew the spark plug (2) and remove
it from its seat, being careful not to allow
dust or other substances inside the cylin-
der.
- Make sure the electrodes and the insu-
lation of the spark plug contain no car-
bon deposits or signs of corrosion. Clean
them with compressed air if necessary.
NOTE: If the spark plug presents cracks on
the insulation (4), rusted electrodes (3) and
(5), excessive deposits or central electrode
(3) with its tip rounded (6), it must be re
-
placed.
WARNING
When replacing the spark plug, use only
new ones of the type advised (see par-
agraph “Technical information”), other-
wise engine performance and duration
may suffer.
- Check the distance between the elec-
trodes using a thickness gauge.
The distance between the electrodes (1)
must be 0.8 mm. Adjust it if necessary,
carefully bending the side electrode (5).
- Make sure the washer (7) is in good con-
ditions.
- To reassemble the spark plug, screw it
gradually all the way to the limit switch,
to avoid damaging its thread.
- Use a wrench to tighten it; turn 1/2 for the
plug to compress the washer.
Spark plug coupling torque: 23 Nm (2.3
kg/m).
- Insert the boot (1) correctly in the spark
plug (2) until you hear a click.
A
