Evolution 33cc, Руководство пользователя, Страница: 11 / 72

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Baseline needle valve settings can be found
in the ”Engine Tuning” section. With the 33GX
it is very important to allow the temperature
to stabilize above 140°F (60°C) before mak-
ing any adjustments; adjusting prior to the
engine warming up will lead you to inaccurate
settings. As the engine warms up you will
notice the rpms naturally rising.
If you do not have a temp gun or have sensors
installed on your engine, allow the engine to
run at half throttle for at least 45 seconds be-
fore attempting to set the high-speed needle.
If you have accurately set the low-speed
needle as described you should not need to
adjust it. Priming
1. Make sure your ignition is off.
2. Open the throttle fully and, close the choke
valve. Flip the propeller 6 times.
3. Close the carburetor completely with your
throttle stick and then open it two detents
from closed. This will allow the engine to
start at a low throttle setting.
Because each fuel system and installation
is slightly different, you may find the need
to modify the above procedure for your
individual setup. The above procedure should
work for most installations.
Starting and Operating the 33GX Engine
Telemetry is a huge asset to help you tune
your engine. The ignition module is even
capable of communicating with Spektrum
telemetry systems directly so you won’t have
to add an additional RPM sensor. You will
need to connect the Evolution Ignition
Telemetry Adapter (EVOA107) between the
RPM port on the ignition unit and the RPM
port on your Spektrum telemetry module in
order to utilize this feature. Telemetry systems
other than Spektrum may require a dedicated
RPM sensor.
We recommend using the Spektrum DSMX Full
Range Aircraft Telemetry Module (SPM9548)
in conjunction with the included adapter. This
system allows you to see real-time RPM and
temperature readings from the engine. The temperature sensor should be wrapped
around the base of the spark plug on the
cylinder head. Using telemetry gives you an
accurate representation of actual temperature
and rpm figures during use, and warnings
can be set to go off if your engine is getting
too hot.
The temperature range should be 190–240°F
(87–115°C) on average. Set your maximum
temperature warning to go off if the engine
exceeds 300°F (150°C). If your engine is con-
tinually near this peak temperature or higher,
immediately decrease throttle to bring the
temperature down. If this continues to occur,
land the airplane and add additional baffling
to your cowl. It is not good for the engine to
run at temperatures this high and could cause
damage if not attended to.
Telemetry