Assembling The Intake System - Husqvarna T425 Workshop Manual

Repair instructions
7.15

Assembling the intake system

1
Fit and tighten inlet bellows D. Refi t the yellow
cover paper.
2
Press the inlet bellows D together and thread it
through the handle part (see fi gure 52).
3
Fit and tighten screws B and snap the plastic cov-
ers C into place using a small screwdriver. Screw
on the cover with screws 2xA (see fi gure 51).
Fit the:
• carburettor
• handle cover
• air fi lter holder
• air fi lter
• air fi lter cover
• clutch cover
Adjusting the carburettor
Conditions during adjustment
1. Turn low and high needles counterclockwise
to the limit by a carburetor adjustment screw
driver without force.
2. Screw the threaded-side (left-handed) of the
limiter cap tool counterclockwise several times
(5 or 6) into the limiter cap. Note! If screwed
too tight, the limiter cap tool hit the needle
surface. Doing so may cause damage.
3. Pull the limiter cap tool gently with the cap. The
cap stops at the inner side of the cover. Note!
When the limiter caps are pulled out, turn the
limiter cap tool clockwise and take it off from
the cap.
4. Adjust low and high needles by a carburetor
adjustment screw driver.
4.1. Turn low and high needles clockwise to the
limit without force Then set them back the
basic adjustment number of turns.
4.2. Start the engine and allow it to warm up in low
speed for 3,5 minutes. If necessary, adjust the
idling speed with the carburetor adjustment
screw driver until the chain stops.
4.3. Turn low needle slowly clockwise to fi nd the
position where idling speed is maximum, then
set the low needle back a quarter (1/4) turn
counterclockwise. Make sure proper idling
speed for each machine by the next pages
carburetor specifi cations.
4.4. Next, adjust high needle. Make a test cut and
adjust high needle for best cutting power, not
for maximum speed. Make sure proper no-load
maximum speed for each machine by the next
pages carburetor specifi cations.
5. After the repair/re-adjustment, push the limiter
cap into the carburetor by the guide side of the
limiter cap tool.
6. Start the engine, make sure that the idling
speed and the wide open throttle speed are in
the specifi ed values. Also make sure that the
chain doesn't move and the engine acceralates
properly.
44
- English
Fig 54
Fig 55
Fig 56
Fig 57