Husqvarna 323R EN - Manual (Page 25)

English –
25
Final setting of the idling speed T
Adjust the idling speed with
the screw T, If it is necessary
to readjust. First turn the
idle speed adjusting screw T
clockwise until the cutting
attachment starts to rotate/
move.
Then turn, counter-
clockwise until the cutting
attachment stops. A correctly
adjusted idle speed setting
occurs when the engine runs
smoothly in every position.
It should also be good
margin to the rpm when the
cutting attachment starts to
rotate/move.
CAUTION! Contact your servicing dealer, if the idle speed
setting cannot be adjusted so that the cutting attachment
stops. Do not use the machine until it has been properly
adjusted or repaired.
Correctly adjusted carburetor
A correctly adjusted carburetor means that the machine
accelerates without hesitation and the machine 4-cycles a little
at max speed. Furthermore, the cutting attachment must not
rotate/move at idling. A too lean adjusted low speed needle L
may cause starting difficulties and bad acceleration.
A too lean adjusted high speed needle H gives lower power =
less capacity, bad acceleration and/or damage to the engine.
A too rich adjustment of the two speed needles L and H gives
acceleration problems or too low working speed.
MAINTENANCE
High speed needle
H
The high speed needle affects
the machine’s power, speed,
temperature and fuel
consumption. A too lean
adjustment on the high
speed needle H (the high
speed needle H is screwed in
too much) gives a too high
speed resulting in engine
damage. Do not allow the
engine to run at full speed
for more than 10 seconds.
Apply full throttle and turn
the high speed needle H
slowly anticlockwise until
the engine runs unevenly.
The high speed needle H is
then turned slowly clockwise
a little until the engine runs
smoothly.
Note the engine should be
run unloaded when
adjusting the high speed
needle. Therefore dismantle
the cutting equipment, nut,
support flange and disc drive
H
before adjusting the high speed needle. The high speed needle
is adjusted correctly when the machine ‘splatters’ a little . If the
machine smokes heavily at the same time as it ‘splatters’ heavily
the adjustment is too rich.
NOTE! For optimum setting of the carburetor, contact a
qualified servicing dealer who has a revolution counter at his
disposal.
If you cannot obtain full
throttle you can adjust the
throttle wire. Turning the
screw (A) clockwise pushes
out the throttle wire casing so
that full throttle can be
obtained. If the engine runs
too fast at idle the throttle
wire casing can be shortened
by turning screw (A)
anticlockwise. CAUTION!
Check that the idle screw T is
correctly adjusted first (see
instructions under the
heading Fine adjustment of
the idle speed T).
Adjusting the throttle wire
CAUTION! Contact your servicing dealer, if the idle speed
setting cannot be adjusted so that the cutting attachment
stops. Do not use the machine until it has been properly
adjusted or repaired.
5 mm