KTM 250 EXC 2023 Owner's Manual page 135

–
Unplug connector
–
Remove coolant temperature sensor
wait until the coolant escapes without bubbles.
–
Mount and tighten coolant temperature sensor
ring.
Guideline
Screw, cylinder head
temperature sensor
S04259-10
–
Plug in connector
–
Mount protection cap
–
Mount radiator cap
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 effective exhaust extraction when starting or
running the engine in an enclosed space.
S04255-10
–
Allow the engine to warm up and cool down again.
–
Check the cooling system for leaks.
–
Check the coolant level. (
COOLING SYSTEM 16
4
.
5
with the O-ring and
5
M10x1.25 12 Nm (8.9 lbf ft)
4
.
3
.
2
.
p. 129)
with the O-
133