Matrix 310.550.320 Originalbetriebsanleitung Seite 70

8.6 Spark plug change
i
29
A26
70
i
h
h
Check the spark plug air gap at least once a year
or when the engine starts poorly. The correct
gap between ignition flag and ignition contact is
0.25"/0.63 mm.
- Wait until the engine has cooled down
completely.
- Pull the spark plug cap (i) off the spark plug, and
use the supplied spark plug wrench (29) to remove
the spark plug (h) by turning.
- When the electrode is severely worn out or
reveals a strong incrustation, the spark plug must
be replaced with an equivalent plug.
A strong incrustation of the spark plug can
be caused by: Amount of oil is too high in the
gasoline mix, poor oil quality, old gasoline mix, or
plugged up air filter.
- Screw the spark plug by hand completely into
the thread. (Avoid jamming it)
- Use the supplied spark plug wrench to tighten
the spark plug.
- When using a torque wrench, the tightening
torque is 12-15 Nm.
- Plug the spark plug socket correctly on the plug.