O.S. Engines FT-300 Gemini User Manual
Page 14
At the conclusion of a flying session, do not leave the
engine "wet" with raw fuel by stopping it after rich-mix-
ture running or prolonged idling. Instead, let it run for a
few moments at full throttle with the correct needle-valve
setting, to bring it up to normal running temperature, then
cut off the fuel supply — preferably by removing the fuel
line from the carburettor. Extra protection against internal
corrosion should be given by injecting some special mois-
ture-displacing oil or light machine oil through the crankcase
breather and rotating the crankshaft for several revolutions
to draw the oil into the crankcase, etc.
Keep the engine in a clean, dry atmosphere when it is not in
use.
When the propeller is removed, replace it with the spacer
supplied and tighten the prop nut lightly. This will protect
the engine from internal damage in the event of an ac-
cidenta! blow to the crankshaft.
Do not dismantle the engine needlessly.
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