Fiate Aviation MZ202, Инструкция по эксплуатации и техническому обслуживанию

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Wait until the head temperature reaches around 100°C (212 °F), at this point you can use
the engine up to full power checking that the CHT does not go over 260°C (500°F).
When you reduce the RPM, it is normal that CHT may increase a bit for a few seconds in
order to dissipate normal internal temperatures.
The air cooled engine is different from the liquid cooled engines in that the CHT
temperature will fluctuate so it is very important to monitor the CHT temperature at all
times.
ADJUSTING THE CARBURETOR
Choke and idle adjustment.
1- Choke adjustment.
Before adjusting the idle, ensure that the choke screw is adjusted correctly. This must be
done on a warm engine; the screw is located to the left of the idling mixture adjusting screw
in the main body of the carburetor.
• Switch off the engine and twist the air screw all the way (without applying excess force)
then loosen by turning out the screw (1½). Turns.
• Start the engine, adjust the idler screw so the engine is running at the same speed or faster
and adjust accordingly.
• To do so, turn the air screw slowly in the appropriate direction; this operation should only
be attempted with the engine mounted on a test stand or by trial and error with the engine
switched off, due to the proximity of the propeller.
• It may be necessary to give the screw a ½ turn more or less than the prescribed amount.
2- Idle adjustment.
The minimum number of revs is 1800 rpm. If the idle is not adjusted correctly, the engine
will run irregularly. To adjust, turn the large, external screw in or out accordingly.
Throttle cable
-
Once the throttle cable has been fitted, adjust the freeplay between the carburetor and the
throttle lever by acting on the tensioning device.
-
Set the throttle lever to minimum.
- Check that the carburetor slide is free to move and that the cable sheath has less than 1
mm of freeplay (check by pulling the sheath). If necessary, adjust the cable adjusting nuts
to achieve the proper end play.
- Check that the two carburetors open at the same time. It is advisable at this time to
sycro-nize your carburetor use an appropriate carb syc tool.
Choke cable.
The choke cable should have 2-3 mm of freeplay so that the slide is completely free when