Carburetor - Idle; Carburetor - Adjusting The Idle Speed - Husqvarna 125 XC-W 150 2017 Owner's Manual

17 TUNING THE ENGINE
17.4

Carburetor - idle

Carburetor – adjusting the idle speed
17.5
The idle setting of the carburetor has a big influence on the starting behavior, stable
idling, and the response to throttle opening. This means that an engine with a correctly
set idle speed is easier to start than if the idle speed is set wrongly.
Info
The carburetor and its components are subject to increased wear caused by
engine vibration. Wear can result in malfunctioning.
The factory setting for the carburetor is set for the following values.
(EXC EU/AU, EXC EU, EXC Six Days EU)
E00370-10
Height above sea level
Ambient temperature
Super unleaded (95 octane) mixed with 2-stroke engine oil (1:60) (
(300 EXC BR)
Height above sea level
Ambient temperature
Super unleaded, type C (ROZ 95/RON 95/PON 91 mixed with 2-stroke engine
oil, 1:60) (
(All XC‑W/XC‑W Six Days models)
Height above sea level
Ambient temperature
Super unleaded (95 octane) mixed with 2-stroke engine oil (1:60) (
The idle speed is adjusted with adjusting screw
The idle mixture is adjusted using the idle air adjusting screw
–
Screw idle air adjusting screw
–
Turn the idle air adjusting screw to the specified basic setting.
Info
The basic adjustment is shown under the respective model.
–
Run the engine until warm.
Guideline
Warm-up time
E00370-11
Danger
Danger of poisoning Exhaust gases are toxic and inhaling them may result
in unconsciousness and death.
–
–
–
Adjust the idle speed with adjusting screw
Guideline
Choke function deactivated – The choke lever is pushed in to the stop. (
Idle speed
–
Turn idle air adjusting screw
begins to fall.
–
Note the position and turn the idle air adjusting screw slowly counterclockwise until
the idle speed again begins to fall.
–
Adjust to the point between these two positions with the highest idle speed.
301... 750 m (988... 2,461 ft)
16... 24 °C (61... 75 °F)
751... 1,500 m (2,464... 4,921 ft)
16... 24 °C (61... 75 °F)
p. 142)
0... 300 m (0... 984 ft)
16... 24 °C (61... 75 °F)
 all the way in.
Always make sure there is sufficient ventilation when running the
engine.
Use an effective exhaust extraction system when starting or running the
engine in an enclosed space.

slowly in a clockwise direction until the idle speed

.

.
≥ 5 min

.
1,400... 1,500 rpm
106
p. 142)
p. 142)
p. 17)