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MAINTENANCE
Maintenance
Safety
The owner
is responsible
for the perfor-
mance of all required
maintenance
as
defined
in the operator's
manual.
Disconnect
the spark plug before perform-
ing maintenance,
except
carburetor
adjust-
ments.
&WARNING:
tmproper
mainte-
nance could
result in serious engine
damage
or in serious injury.
Carburetor
Your Husqvama
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 witt
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.
Function
• The carburetor
governs
the engine's
speed vie the throttle control
Air and fuel
are mixed in the carburetor.
• The T-screw
(BB) regulates
the throttle
setting at idle speed. If the T-screw
is
turned clockwise
this gives a higher idle
speed; turning
it counterclockwise
gives a
lower idle speed.
Basic
setting
• The basic carburetor
settings
are ad-
justed during testing
at the factory.
Fine
adjustment
should
be carried out by a
skirled technician.
Recommended
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 T-screw if it is necessary to readjust.
The idle speed is correctly adjusted when
the engine wilt run smoothly in every posi-
tion.
BB
Muffler
Some mufflers are fitted with catalytic
con-
verters. See the Technical
data section to
find out if your machine
is equipped
with a
catalytic
converter.
The muffler is designed
to dampen
the
noise level and to direct the exhaust fumes
away from the use£ The exhaust fumes
are hot and can contain
sparks, which can
result in fire if the exhaust fumes
are
directed towards
a dry and flammable
material.
Some mufflers
are equipped
with a special
spark arresting
screen
(CC). If your ma-
chine is fitted with this type of screen,
it
should be cieaned
regulady.
To access
the
screen,
remove the outlet cover on the
front of the muffler. Use a wire brush to
clean the screen
On mufflers
without a
catalytic
converter
the screen should
be
cieaned weekly, or replaced
if necessary.
On mufflers fitted with a catalytic
converter
the screen should be checked
and cleaned
monthly.
If the screen is damaged
it
should be replaced.
If the screen
is fre-
quently blocked,
this can be a sign that the
function of the catalytic
converter
is im-
paired
Contact
your dealer to inspect the
muffler. A blocked
screen wiil cause the
engine to overheat
resulting
in damage
to
the cyiinder
and piston
CAUTION!
Never use a machine
that has
a faulty or loose muffler. Ensure the muffler
bolts are tight.
545154658
Rev. 5
7/15/08
English-16
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