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HUSQVARNA-21
Air Filter
The engine air lter consists of a cyclone lter and a
ne lter.
Air is drawn in through the screen (1) on the cyclone
lter and coarser pollutants collect in the container (2).
The ne lter, consisting of a foam rubber pre-lter and
a paper lter cartridge, is located under the cowling
(3). The cowling and the cyclone lter can be removed
by removing the wing nut (4).
See Replacing the Air Filter in the Maintenance section
for cleaning instructions.
Running the machine with a dirty air lter will cause
the engine to run on partial choke and show the same
symptoms as a closed choke described above. It can
also be difcult to start.
8011-126
4
3
2
1
8011-027
Spark Plug
The engine spark plug is hidden under the ignition
cable boot. When performing service, it is important
that the engine cannot start accidentally. For this
reason, always remove the ignition cable boot from the
spark plug. To avoid pulling the cable, the cable boot
is equipped with a special handle; see the illustration.
See Technical Data for replacement specications.
Mufer
WARNING!
The engine and the exhaust system,
become very hot during operation.
Risk for burns if touched.
Allow engine and exhaust system to
cool at least two (2) minutes before
refueling
The engine mufer is equipped with a heat protective
cowling but still becomes hot when the engine is
running. Avoid touching the mufer when it is warm.
There is a risk for burns.