[ Ссылка ] – Proper starting procedure for Rotax 912 UL & ULS engines, TOMO Aircraft Deland Florida.
Cold starting a Rotax is not that difficult: use the fuel pump (if any) for about 5 seconds, activate the choke fully, place the throttle in idle position (or else the choke will not work on these Bing carburetors) and activate the starter.
A ten seconds maximum will save it from overheating, you will need to wait two minutes to cool the starter before you take another attempt another start.
When it starts, close the choke slowly and take over with the throttle to keep RPM constant. If it does not start it is probably flooded: close the choke, open the throttle and start again. Close the throttle when it fires. If it still does not start you might have used not enough choke.
After starting
When the engine starts, keep it running at or below 2000 RPM. Avoid gassing it like a car. Warm for the first two minutes up at 2000 RPM, this way the oil slowly warms up and is distributed through the engine. After two minutes increase RPM to 2500 and continue warm up.
The engine is ready for taxi and run up checks when the oil reaches a minimum of 40 - 50 °C. Oil operating temperature is between 75 °C and 110 °C. Make sure that the oil reaches this temperature to boil off any condensation that might have accumulated, at least once every flying day. This keeps oxidation out of the engine.
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[ Ссылка ] – Proper starting procedure for Rotax 912 UL & ULS engines, TOMO Aircraft Deland Florida.
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