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MAINTENANCE
Carburetor
Your Husqvama product has been designed and mmmfactmx_d
to specifieatioos
thai
_'eduee harmful
emflssions.
After you*' unit
has been
run
8-I0
tanks
of fuel the engine
has
broken
in, ']b e1_,sm_ that your
unit
ks at peak
performm_ee
and
producing
the least amount
of harmful
emissioP.s
aFler break
in
have your authorized
servicing
dealer,
who has a r_.oiution
counter at his disposal, to adjust your earbu_x_to_" for optimmn
operating eondttiom.
Operation
• The carburetor governs
the engine's speed via the
throttle. Air/furl Lsmixed
in the carburetor. ']'he
air/fuel mixture is
adjustable. To take
advantage of the engine's
optimal output the
adjustment nlust be
eot'Peel:,
• The setting of the
earbmx_tor
means
that
the
engine is adapted to local
condiilesxs,
for *_mple,
the elimae,
altitude
gasoline m_dthe t_'_t)e o f
2-slroke
oil
• The carburetor
is
equipped
with three
adjustment
possibilities:
L = Low speed needle
H = la[igh speed needle
T = idle speed adjuster
screw
H
L
• The fuel qum_til 7 in relation to the air flow pemlttled
by the
ttFottle
opening is a<tiu,sted using the L and H-needles.
*lMming the needles clockwise gives a lem_er fuel mixture
0ass fuel) m_d turning
theni m_ti-eloekwise gives a richer fuel
nltxlu*_ (more rue 0- A leaner mixture gives high revs while a
richer mtxtmx_ give Iess rays,
• The T-screw regulaies the position of the throttle while the
engine is idling. Turning the screw clockwise gives a higher
idling speed while mining it anti-clockwise gives a lower
idling speed.
Basic setting
• The ead3uretor
is _?t to its bKsic setting when test run at the
facto W The basic setting should be kept during the
machine's
fiml: woddng
hours. ']'hereafter the carbu_x_tor
should be finely adjusted, Fine adlustnlem
should be carried
out by a smiled technician.
NOTE[ If the cutting attachment rotates/moves while the
engine is
idling
the ']'-se_x_v should be turned m_ii-eloekwkse
until the cutting attachment slops.
Ree. idling speed: 2 700 rpm,
Recommended
max. speed: S_
"]&tmlcM Dalai',
Fine adjustment
• When
the nlaehine
has been
"run-in"
the carburetor
should
be finely adjusted, l'ha fine adjustment should be carried
out by q,aallfitml
person. Ftmt a<_lustthe L21et.then the
idling scram ']' and then the lz{21et.
Conditions
• Befo_x_ any adjusm_ents are made the airfilter should ha clean
and the airftlter cover fitted Adjusting the carburetor while
a di*xy
aliTilter is in use will result in a leaner mixiure when
the filter is finally clem_ed.
ThLs can
give rise to serious
engine damage.
• Carefully lurn the L and H needle to the mid point between
fully turned in m_d fully turned out..
• Do not attempt
to adjust
the needles
beyond
the stops
as
damage
can occur.
• Now start the _rmchine according to the stra'iing insu'uetious
and run it warm for 10 minutes.
NOTE! If the cutting attaehmem rolatesimoves the T screwy
should be turned anti-elockwkse until the cutting attachment
stops.
Low speed needle L
'1}_"to find the highest
ktling
speed turning the Iow speed
needle L clockwkse
*x_speetively c ounte__
clockwkse.When the highest
speed has been found, turn
the low speed needle L i/4
mm counter-clockwise.
NOTE{ If the cutting-
equipment rotates/moves in
the idling position, turn the
idling speed screw ']'
counter-dockwkse until the
cutting attachment stops.
En#_ish-21
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