Speed - KTM 250 XC-W 2018 Owner's Manual

17 TUNING THE ENGINE
17.5
134
Carburetor – adjusting the idle speed
402799-11
(EXC BR)
Height above sea 751 ... 1,500 m (2,464 ... 4,921 ft)
level
Ambient tempera- 16 ... 24 °C (61 ... 75 °F)
ture
Super unleaded, type C (ROZ 95/RON 95/PON 91 mixed
with 2-stroke engine oil, 1:60) (
(All XC‑W models)
Height above sea 301 ... 750 m (988 ... 2,461 ft)
level
Ambient tempera- 16 ... 24 °C (61 ... 75 °F)
ture
Super unleaded (95 octane) mixed with 2-stroke engine oil
(1:60) ( p. 165)
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 setting of the carburetor is specified in the
technical data.
–
Run the engine until warm.
Guideline
Warm-up time
–
Connect special tool.
Tachometer (45129075000)
Danger
Danger of poisoning Exhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
–
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.
–
Adjust the idle speed with adjusting screw
Guideline
Choke function deactivated – The choke lever is pushed in
to the stop. ( p. 22)
Idle speed
p. 166)
1 .
2
1 all the way in.
≥ 5 min
2
.
1,400 ... 1,500 rpm
.