KTM 125 DUKE 2021 Owner's Manual page 196

16 COOLING SYSTEM
194
Main work
–
Position the motorcycle upright.
–
Place an appropriate container under the engine.
–
Remove screw
F00765-10
–
Remove radiator cap
–
Completely drain the coolant.
–
Mount and tighten screw
Guideline
Screw plug, water
pump drain hole
F00763-10
1
with the seal ring.
2
.
1
with a new seal ring.
M6 10 Nm (7.4 lbf ft)