MAINTENANCE
Carburetor
Basic setting
Your Husqvarna product has been designed and
manufactured to specifications that reduce harmful
emissions.
After your unit has been run 8-10 tanks of fuel the engine
has broken in. To ensure that your unit is at peak
performance and producing the least amount of harmful
emissions after break in, have your authorized servicing
dealer, who has a revolution counter at his disposal, to adjust
your carburetor for optimum operating conditions.
•
The carburetor is set to its basic setting when test run at the
factory. The basic setting should be kept during the
machine‘s first working hours. Thereafter the carburetor
should be finely adjusted. Fine adjustment should be carried
out by a skilled technician.
NOTE! If the cutting attachment rotates/moves while the
engine is idling the T-screw should be turned anti-clockwise
until the cutting attachment stops.
!
Rec. idling speed: 2 700 rpm.
WARNING!
The complete clutch cover with shaft
must be fitted before the machine is
started, otherwise the clutch can become
loose and cause personal injury.
Recommended max. speed: See “Technical Data” .
!
WARNING!
If the idling speed cannot be adjusted so
that the cuttingequipment stops, contact
your service workshop. Do not use the
machine until it has been correctly
adjusted or repaired.
Operation
•
The carburetor governs
the engine‘s speed via the
throttle. Air/fuel is mixed
in the carburetor. The
air/fuel mixture is
adjustable. To take
advantage of the engine‘s
optimal output the
adjustment must be
correct.
Fine adjustment
•
When the machine has been ”run-in” the carburetor should
be finely adjusted. The fine adjustment should be carried
out by qualified person. First adjust the L-jet, then the
idling screw T and then the H-jet.
Conditions
•
Before any adjustments are made the airfilter should be clean
and the airfilter cover fitted. Adjusting the carburetor while
a dirty airfilter is in use will result in a leaner mixture when
the filter is finally cleaned. This can give rise to serious
engine damage.
•
•
The setting of the
carburetor means that the
engine is adapted to local
conditions, for example,
the climate, altitude,
•
•
•
Carefully turn the L and H needle to the mid point between
fully turned in and fully turned out..
Do not attempt to adjust the needles beyond the stops as
damage can occur.
Now start the machine according to the starting instructions
and run it warm for 10 minutes.
gasoline and the type of
2-stroke
oil.
The carburetor is
equipped with three
adjustment possibilities:
L = Low speed needle
H = High speed needle
T = Idle speed adjuster
screw
NOTE! If the cutting attachment rotates/moves the T screw
should be turned anti-clockwise until the cutting attachment
stops.
Low speed needle L
Try to find the highest idling
speed, turning the low speed
needle L clockwise
•
•
The fuel quantity in relation to the air flow permitted by the
throttle opening is adjusted using the L and H-needles.
Turning the needles clockwise gives a leaner fuel mixture
(less fuel) and turning them anti-clockwise gives a richer fuel
mixture (more fuel). A leaner mixture gives high revs while a
richer mixture give less revs.
respectively counter-
clockwise. When the highest
speed has been found, turn
the low speed needle L 1/4
turn counter-clockwise.
NOTE! If the cutting-
equipment rotates/moves in
the idling position, turn the
idling speed screwT
The T-screw regulates the position of the throttle while the
engine is idling. Turning the screw clockwise gives a higher
idling speed while turning it anti-clockwise gives a lower
idling speed.
+ 1/4
counter-clockwise until the
cutting attachment stops.
L
20
– English
| Categories | Chainsaw Manuals, Husqvarna Chainsaw Manuals |
|---|---|
| Tags | Husqvarna 325P4, Husqvarna X-Series |
| Model Year | 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
| Download File |
|
| Document Type | Operator's Manual |
| Language | English |
| Product Brand | Husqvarna, Chainsaw |
| Document File Type | |
| Publisher | husqvarna.com |
| Wikipedia's Page | Husqvarna |
| Copyright | Attribution Non-commercial |
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