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rotax 4-stroke engine maintenance schedules
All information provided here is correct at time of publishing to the best of our knowledge, but Rotax recommendations may change at any time without our knowledge. It is the engine owners responsibility to ensure that the engine is fit for flight at all times. The information is provided here free of charge and with no obligation from us to the consumer.
Example:
A 912UL without slipper clutch (e.g. Eurostar, Quantum, Foxbat, Rans S6), that has done 600 hours and has been run on Unleaded Mogas should have had:
25 hour engine service after the 1st 25 hours
100 hour engine service at 100 hours TT or 1 year old
200 hour engine service at 200 hours TT or 2 years old
100 hour engine service at 300 hours TT or 3 year old
200 hour engine service at 400 hours TT or 4 years old AND a 400 hour gearbox service
100 hour engine service at 500 hours TT or 5 year old AND replaced all rubber components at 5 years old
200 hour engine service at 600 hours TT or 6 years old AND a 600 hour gearbox service
Had it been run on avgas, the spark plug life would be reduced to 100 hours and it would need an additional oil and filter change every 50 hours.
Example:
A 912ULS with a slipper clutch (e.g. Quik, GT450, C42, MT03 or Europa), that has done 1000 hours and has been run on Mogas should have had:
25 hour engine service after the 1st 25 hours
100 hour engine service at 100 hours TT or 1 year old
200 hour engine service at 200 hours TT or 2 years old
100 hour engine service at 300 hours TT or 3 year old
200 hour engine service at 400 hours TT or 4 years old
100 hour engine service at 500 hours TT or 5 year old AND all rubber components replaced
200 hour engine service at 600 hours TT or 6 years old
100 hour engine service at 700 hours TT or 7 years old
200 hour engine service at
800 hours TT or 8 years old
100 hour engine service at 900 hours TT or 9 years old
200 hour engine service at 1000 hours TT or 10 year old AND all rubber components replaced AND a 1000 hour gearbox service
Had it been run on avgas, the spark plug life would be reduced to 100 hours and it would need an additional oil and filter change every 50 hours.