Husqvarna SMR 511 2012 I.E. Bedienungsanleitung Seite 77

To remove spark plug, proceed as follows:
- remove the air filter cover;
- disconnect connector (1) on engine left side;
- on engine right side, undo screw (2) using an 8 mm
wrench;
- turn spark plug cap (3) complete with coil through
90° and lift it to remove it; then remove spark plug.
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CAUTION*: Carefully change the spark
plug, if necessary, using one having the
same rating.
Before refitting the plug, thoroughly
clean the electrodes and the insulator
using a metal brush. Apply graphitised
grease on spark plug thread, screw it
by hand all the way down, then tighten
it to the torque of 10 ÷ 12 Nm (7.38
÷ 8.85 ft-Ib). Loosen spark plug and
tighten it again to 10÷12 Nm (7.38 ÷
8.85 ft-Ib).
Spark plugs which have cracked insula-
tors or corroded electrodes should be
replaced.
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SPECIFICATIONS - OPERATION - MAINTENANCE EN - 27