Husqvarna 326SX-Series 用户手册

16 – 

English

Try to find the highest idling speed, turning the low speed 
needle L clockwise respectively counter-clockwise. When the 
highest speed has been found, turn the low speed needle L 1/
4 turn counter-clockwise.

CAUTION!  If the sweeper rollers rotates/moves while the 
engine is idling, the T-screw should be turned anti-clockwise 
until the sweeper rollers stops.

Adjust the idling speed with the T-screw, if it is necessary to 
readjust. First turn the idle speed adjusting screw T clockwise 
until the sweeper rollers starts to rotate/move. Then turn, anti-
clockwise until the sweeper rollers 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 sweeper rollers starts to rotate/move.

The high speed jet H affects the engine power, speed, 
temperature and fuel consumption. If the high speed jet H is 
set too lean (screwed in too far) the engine speed will be too 
high and cause engine damage. Do not let the engine run at 
full speed for more than 10 seconds.

Apply full throttle and turn the high speed jet H very slowly 
clockwise until the engine slows down. Then turn the high 
speed jet H very slowly anticlockwise until the engine starts to 
run unevenly. Now turn the high speed jet H slowly clockwise 
a little way until the engine runs smoothly. 

Note that the engine should be run unloaded when adjusting 
the high speed needle. Therefore dismantle the sweeper 
rollers and roller shafts before adjusting the high speed 
needle.

The high speed jet H is adjusted correctly when the machine 
burbles a little. If the machine races then the setting is too 
lean. If the engine produces a lot of smoke and burbles a lot 
then the setting is too rich.

CAUTION!  For optimum adjustment of the carburettor, 
contact a qualified dealer/service workshop that has a 
revolution counter at their disposal. 

When the carburetor is correctly adjusted the machine will 
accelerate without hesitation and burble a little at maximum 
speed. It is also important that the sweeper rollers does not 
rotate/move at idle.

If the high speed jet H is set too lean it will result in less power, 
less performance, poor acceleration and/or damage to the 
engine.

If both the L and H jets are set too rich it will results in 
acceleration problems or too low a working speed.

L

+ 1/4

H