O.S. Engines IL-300 - Manual (Page 10)

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Model engine fuel is poisonous. Do not allow it to
come into contact with the eyes or mouth. Always
store it in a clearly marked container and out of the
reach of children.
Model engine fuel is also highly flammable. Keep it
away from open flame, excessive heat, sources of
sparks, or anything else which might ignite it. Do
not smoke, or allow anyone else to smoke, near to it.
Reminder!
Fuel
The IL-300 should be operated on a methanol based fuel
containing not less than 18% (volumetric) castor oil, or a top
quality synthetic lubricant (or a mixture of both), plus a small
percentage (5-20%) of nitromethane for improved flexibility
and power.
FUEL AND LUBRICATION
Lubrication
All parts of the IL-300 are automatically lubricated by the oil
content of the fuel mixture. It is suggested, however, to apply
small amount of machine oil or grease to moving parts of the
rocker arms before starting the engine.
The crankcase breather hole is located at the back of the
engine and is fitted with a brass nipple. Fit a length of silicone
tubing of approx. 2.5mm I.D. to this nipple to conduct away
the small amount of oil that escapes through the breather.
Make a habit of draining out the excess oil in the crankcase
at the end of each flying session. Leaving contaminated oil in
the crankcase for a long time will cause rust. Also, residual
castoroil will tend to solidify and lock the engine. Inject
corrosion-inhibiting oil into the crankcase to neutralize the
effects of any remaining contaminants.
Rear Housing
Breather Nipple
2.5mm Silicone tubing
Breather Nipple
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STARTING
Precautions
For safety, please observe the following instructions
before starting the engine.
Start the engine by turning the propeller counter-
clockwise (i.e. normal running direction).
Do not start the engine with the throttle fully opened,
otherwise the model will tend to move forward
suddently due to the strong thrust of the propeller. Hold
both wings of the model when starting the engine.
Do not carry out carburetor adjustments (except needle-
valve adjustment) while engine is running.
Use a high-torque electric starter.
Starting procedure is as follows:
Open the needle-valve 2 to 3 turns from the fully closed
position. 1.
open
Make sure that glowplugs are not connected to the battery.
Do not heat the glowplugs while priming. 2.
Close
3.
open the
throttle fully
Open the throttle fully and apply an electric starter for 5~6
seconds to prime the engine.