9.2.2 Spark plug replacement
i
h
32
i
A26
9.2.3 Wear Parts
Even with proper use, some components are subject to
normal wear.
These must be replaced regularly depending on the type
and duration of use. These parts include the cutting tool
and the retaining plate.
Check at least once a year or in case of regular bad starts,
the gap between the electrodes in the spark plug (H). The
correct distance between the ignition flag and ignition
contact is 0.63 mm/0.25".
- Wait until the engine is completely cooled.
- Pull out the spark plug cap (I) from the spark plug (H) and
rotate the spark plug with the supplied spark plug wrench
(32).
- In case of excessive wear of the electrode or if there is
very heavy incrustation, the spark plug must be replaced
with one of the same type.
Heavy incrustation on the spark plug can be caused by:
Too high percentage of oil in the fuel mixture, bad oil
quality, very old gasoline mixture or clogged air filter .
h
- Turn the ignition plug (h) by hand completely into the
thread. Avoid any tilting of the spark plug while doing so.
- Tighten the spark plug (H) using the supplied spark plug
wrench (32).
- When using a torque wrench, the tightening torque is
12-15 Nm.
- Insert the spark plug connectors (I) correctly on the spark
plug.
To avoid the risk of accidental start-up,remove the spark
plug cap.
G
B
31