KTM 690 Enduro R Owner's Manual page 167

SERVICE WORK ON THE ENGINE
–
Install and tighten the oil filler plug
Danger
Danger of poisoning Exhaust gases are poisonous and inhaling them may result
in unconsciousness and/or death.
–
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.
–
Start the engine and check that it is oil-tight.
Subsequent work
–
Check the engine oil level. (
with the O-ring.
1
p. 157)
165