Husqvarna 335XPT Workshop Manual page 31

Assembly (continued)
!
WARNING!
The fuel used in the chain saw poses the
following hazards:
• The fluid and its vapours are poisonous.
• Can cause skin irritation.
• Is highly inflammable.
After the carburettor has been pressure tested, continue
assembly as follows:
1. Insert the carburettor a little and fit the throttle control (X).
Then insert the carburettor fully.
2. Fit the fuel pipe (V) using pliers.
3. Fit the choke control (Y) using pliers.
4. Fit the air filter holder (U), the two screws and the air filter
(S). Tighten the screws to 1.5 Nm.
5. Fit the carburettor cover.
6. Fit the chain and bar. See the Operator's manual.
7. The function of the carburettor is also affected if the
manifold pipe or pulse tube are defective. Inspect these
parts too.
8. To change the manifold pipe, see page 38.
9. To change the pulse tube, see page 35.
Basic setting of the high and low speed
needles
Important! Before any adjustments are made the following
must be completed.
• Fit a bar and chain combination approved for this model. "See
Technical data in the Operator's manual."
• The chain should not be adjusted too much, approx. 0.2
inches/ 5 mm should remain to the underside of the bar.
• Fit a new air filter.
Carried out when the chain saw is assembled.
1. Start the engine and adjust the idling speed using the T
screw until the chain stops.
2. Adjust the H-needle until the engine's top speed is
13 000 ± 200 rpm. Use a screwdriver with a narrow blade.
3. Let the engine run at 13 000 rpm until it is warm, approx.
1 minute.
4. Adjust the H-needle until the engine's speed is 13 400 rpm.
Turn the locking cap to its richest position. (Screw counter-
clockwise until it stops.)
5. Now carefully knock the locking cap in position using a
suitable punch (5 mm).
6. Adjust the idling speed to 2800 rpm.
7. Adjust the L-needle until the highest idling speed has been
reached, now screw the L-needle counter-clockwise a 1/2
turn. Use a screwdriver with a narrow blade.
8. Adjust the locking cap to its richest position. (Screw
counter-clockwise until it stops.) Carefully knock the locking
cap in position using a suitable punch (5 mm).
CARBURETTOR
X
Y
V
U
S
L
H
T
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