KTM 250 EXC TPI 2021 Owner's Manual page 136

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16 COOLING SYSTEM
134
Unplug connector
Remove thermostat
escapes without bubbles.
Mount thermostat
Guideline
Screw, cylinder head
temperature sensor
Plug in connector
S04259-10
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. (
4
.
5
with O-ring and wait until the coolant
5
with the O-ring and tighten.
M10x1.25
12 Nm (8.9 lbf ft)
4
.
3
.
2
.
p. 130)

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