O.S. Engines FT-300 Gemini User Manual
Page 6
GLOWPLUG
With a four-stroke engine, ignition of the fuel charge takes
place at every fourth stroke of the piston instead of every
two strokes. Because of this, conventional two-stroke glow-
plugs may not suit this engine in some cases. For general
use, the special O.S. Type F glowplug is recommended.
CHOKE VALVE
"Gemini Series" engines are equipped with a spring-loaded
choke valve. The choke valve operating lever can be located
right or left by reversing the hexagon nut and cap screw.
After mounting the engine in the model, secure the L-
shaped choke rod by tightening the set-screw. If the rod
supplied is too long, reduce it to the required length. If
the rod length is more than 40 mm (1-1/2 in.) its outer end
should be supported to avoid vibration.
Fig.1
Take care that the rubber pad does not become detached.
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