Husqvarna FC 450 Rockstar Edition 2022 Owner's Manual page 125

SERVICE WORK ON THE ENGINE 17
Info
For optimal performance of the engine oil, do not mix
different types of engine oil.
Husqvarna Motorcycles recommends changing the
engine oil.
–
Mount and tighten the filler plug together with the O-ring.
Danger
Danger of poisoning Exhaust gases are toxic and
inhaling 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.
–
Start the engine and check for leaks.
Finishing work
–
Check the engine oil level. ( p. 119)
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