8
How to prepare your Fuel/Oil Mixture
A good method for preparing the fuel/oil mixture could prevent a good deal of problems. By
adopting the same method every time, the preparation will become an automatic process that
will simplify matters.
Always use a clean approved container: make sure it is also free of condensation and that you
know the exact capacity.
1.
To dilute the oil more easily, pour a small amount of fuel into the container.
2.
Pour in the required amount of oil. Shake slowly to mix the oil and fuel.
3.
Add sufficient fuel to obtain the prescribed fuel/oil mixture. If you use a filter at this stage,
it should have a very fine mesh in order to filter any water or foreign particles.
4.
Screw the lid back onto the container and shake vigorously. Pour the fuel/oil mixture into
the fuel tank of your aircraft. Use a funnel with a filter that is fine enough to prevent any
impurities from entering the fuel tank whilst allowing the oil to pass through.
PRE-START PROCEDURES
Before starting up the engine for the first time, carry out a general inspection, checking in
particular:
- The carburetor and fuel feed circuit are securely installed.
- Check the vacuum pressure tubing between the crankcase inlet and fuel pump, if you have a
Bing carburetor, or the base of the carburetor if you have a Tillotson model.
- Check the condition of the electric cables and that the spark plug’s high tension lead has been
fitted correctly.
- Check that the two black cables going from the engine shut-off control to the switch have
been connected correctly
- Ensure the rubber engine mounts are properly installed and that the locking bolts have been
tightened sufficiently.
- Check the gear box and all bolts, nuts on the gear box.
- Never run the engine without the propeller; this is particularly important for the free air
model.
- Ensure the propeller and locking bolts are in good condition. Check that the propeller is
suitable for the engine as well as the direction of rotation is correct.
Summary of Contents for MZ202
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