KTM 125 Duke Owner's Manual page 158

17 SERVICE WORK ON THE ENGINE
Main work
–
Remove the oil filler plug
engine oil.
Engine oil (SAE 15W/50) (
Engine oil (SAE 10W/40) (
Info
For optimal performance of the engine oil, do not mix different types of engine
oil.
B00773-10
If appropriate, change the engine oil.
–
Install and tighten the oil filler plug with O-ring.
Danger
Danger of poisoning Exhaust gases are toxic and inhaling them may result in
unconsciousness and/or death.
–
–
Start the engine and check that it is oil-tight.
Finishing work
–
Check the engine oil level. (

with the O-ring from the clutch cover and fill up with
p. 182)
p. 183)
When running the engine, always make sure there is sufficient ventilation,
and do not start or run the engine in an enclosed space without an effective
exhaust extraction system.
p. 152)
156