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http://www.ultralightnews.ca/ Page 19 of 30
The Ultralight News - your one stop Ultralight News.
Please note: If the engine has a centrifugal clutch installed within the drive system, then engine should be
run with the clutch firmly engaged to avoid unnecessary wear of the clutch lining.
5.5.Operating condition of the engine
While the engine is running, the cylinder head temperatures and the exhaust gas temperatures of both
cylinders should be monitored. So long as the maximum temperatures of the cylinder head and/or exhaust
temperature are not exceeded, the engine can be run without a time limit in the set load range (also full load
at maximum performance). It is further recommended during operation to monitor the fuel pressure. Lack of
fuel pressure will lean the fuel mixture and lead to a loss of performance and cause the engine to fail.
5.6.Powering down the engine
Before the engine is switched off, it should be run for a short period at fast idling revs. This will allow the
cooling system to reduce the temparature of the engine gradually without stressing any components and
overheating.
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