Husqvarna 362XP Workshop Manual page 35

Low speed jet L
Find the highest idling speed by slowly turning the L-screw
clockwise then anti-clockwise. When the highest speed has
been found, turn the L-screw anti-clockwise 1/8 - 1/4 turn.
WARNING! If the chain turns when idling, the
T-screw should be turned anti-clockwise until
the chain stops.
Fine adjustment of idling T
Setting the idling speed is carried out using the screw
marked T. If adjustment is necessary, screw in (clockwise)
the idling screw T with the motor running, until the chain
starts to turn. Then screw out (anti-clockwise) until the chain
stops moving. The correctly set idling speed is when the
motor runs smoothly in all positions with a good margin from
the speed where the chain starts to move.
!
WARNING!
Do not use the saw until it has been
adjusted so that the chain is still.
High speed jet H
The high speed jet screw H influences the chainsaws power
and engine speed. If the H-screw is set too weak (H screw
too far in) the saw will over-rev with engine damage as a
consequence. Run the saw at full throttle for 10 seconds.
Then turn the H-screw anti-clockwise 1/4 turn. Run the saw
again at full throttle for 10 seconds and listen to the difference
in the max. overspeed. Repeat this procedure again with the
H-screw turned a further 1/4 turn anti-clockwise.
You have now run the saw at settings H ±0, H = +1/4 and H
= +1/2 from the base settings. At full throttle the motor will
have sounded different at each setting. The H-screw is
correctly adjusted when the saw "burbles" (four-strokes) a
little. If the saw "shrieks" then the setting is too weak. If there
is a lot of smoke from the exhaust at the same time as the
motor burbles then the setting is too rich. Turn the H-screw
clockwise to the setting that sounds right.
NOTE!
For optimal setting, a tachometer should be
used. The recommended maximum
overspeed should not be exceeded.
Correctly adjusted carburettor
A correctly adjusted carburettor means that the saw
accelerates without hesitation and the saw burbles a little at
full throttle. In addition the chain should not turn when idling.
If the L-screw is set too weak this can make the saw difficult
to start and cause poor acceleration. If the H-screw is set too
weak the saw will have less power, poor acceleration and/or
motor damage. An over rich setting of either L or H screws
will cause acceleration problems or too low working speed.
CARBURETTOR
L
+ 1/4
H
English – 33