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English---16
545196741 Rev. 2 4/30/09
MAINTENANCE
Carburetor
Your Husqv arna product has been designed
and manufactured to specifications that re-
duce harmful emissions. After the engine
has used 8--10 tanks of fuel, the engine will
be run--in. To ensure that it continues to run
at peak performance and to minimize harm-
ful exhaust emissions after the run--in peri-
od, ask your servicing dealer to adjust your
carburetor.
The owner is respons ible
f
or the per
f
or-
mance of all required maintenance as
defined in the operator’s manual.
W ARNING: The complete clutch,
clutch cover , and shaft must be
fitt ed be fore the machine is starte d,
otherwise parts could come loose
and cause personal injury .
Function
S The carburetor governs the engine’s
speed via the throttle control. Air and fuel
are mixed in the car buretor.
S The T--screw regulates the throttle setting
at idle speed. If the T--screw is turned
clockwise this gives a higher idle speed;
turning it countercloc kwise gives a lower
idle speed.
Basic setting
S The basic carburetor settings are ad-
justed during testing at the factory. Fine
adjustment should be car ried out by a
skilled technician.
Rec. idle speed:
See “Technical data” section.
Recommended max. speed:
See “Technical data” section.
Fine adjustment of the idle speed--T
Adjust the idle speed using the idle adjust-
ment scr ew--T if it is necessary to readjust.
First, turn the idle adjustment screw--T
clockwise until the cutting attachment st arts
to rotate. Then, turn the screw counter-
clockwise until the cutting attachment st ops.
The idle speed is correctly adjusted when
the engine will run smoothly in every posi-
tion. The idle speed should also be well
below the speed at which the cutt ing attach-
ment starts to rotate.
CAUTION! If the cutting attachment rotates
when the engine is idling the idle adjust m ent
scr ew T should be turned counter clockw ise
until the cutting attachment stops.
Idle Speed
Screw --T
W ARNING: If the idle speed can-
not be adjus ted so that the cutting
attachmen t stop s, contact your se r-
vicing dealer. Do not use the ma-
chine until it has bee n correctly ad-
justed or repaired.
Unit/Maintenance Safety
Disc onnect the spark plug before perform-
ing maintenance, except carburetor adjust-
ments.
Muffler
CAUTION! Muffler is fitted with a catalytic
converter designed to reduce harmful ex-
haust gases.
The muffler is designed to reduce the noise
level and to direc t the exhaust gases away
from the operator. The exhaust gases are
hot and can cont ain sparks, which m ay
cause fire if directed against dry and com-
bustible material.
Mufflers are equipped with a special spar k
arrest or m esh. You should clean the mesh
at least once a month. This is best done
with a wire brush. If the mesh is damaged
it should be replaced. Ifthemeshisfre-
quently blocked, this can be a sign that the
performance of the catalytic converter is
impaired. Contact your dealer to inspect
the muffler. A blocked mesh will cause the
machine to over heat and result in damage
to the cylinder and piston.
Muffler bolts
CAUTION! Never use a machine that has
a faulty or loose muffler. Ensure the muf fler
bolts are tight.
Spark arrestor mesh