KTM 390 Duke Series 2019 Owner's Manual page 199

Main work
–
Position the motorcycle vertically.
–
Place an appropriate container under the engine.
–
Remove screw
F00857-10
–
Remove radiator cap
–
Completely drain the coolant.
–
Mount and tighten screw
Guideline
Screw plug, water
pump drain hole
F00856-11
COOLING SYSTEM 16
1
with the seal ring.
2
.
1
with a new seal ring.
M6 10 Nm (7.4 lbf ft)
197