Evolution Engines 80GX - Manual (Page 4)

7 8
Technical Data
* if battery test is enabled
Version
190 g Weight
2x Li-Ion/LiPo* 6.0V Power supply
6x NiCd / NiMH* 8.4V
6.0V*
Minimal battery voltage*
8.4V* Maximum battery voltage*
Sleep mode after 90 seconds of engine inactivity
Battery level signalization *
Ignition goes off if engine runs counterclockwise
Choice of preignition curve
5º Preignition point
240º / 120º Location of the magnet
1Ah Min. battery capacity
Never use ignition with plug cap removed from plug! Before first
flight, do a range check with running engine.
Low battery
Sleep mode
Short silencer
Long silencer
0 10
0
m
s
20
0
m
s
30
0
m
s
40
0
m
s
50
0
m
s
60
0
m
s
70
0
m
s
80
0
m
s
90
0
m
s
1
s
1.
1
s
1.
2
s
1.
3
s
1.
4
s
LED Blinking Types
light
dark
LED Blinking Indication
Fast blinking
(after power up)
Battery test is running Wait a while
Fast blinking
(5 sec after power up)
Battery voltage is low
Charge battery/Voltage
is lower than 6.5V
One short flash
per second
Sleep mode spark is blocked
Unplug battery and
reconnect it again
Type Problem Solution
Starting and Choke Valve Operation
1) When you are ready to start your engine, make sure the ignition is switched
off, the choke valve is closed and the throttle valve is partly open. Confirm
that fuel is filling the fuel line to the carburetor then switch the ignition to
the on position. Flip the propeller smartly until the engine fires. With the
choke in the closed position, the engine will fire then quit.
2) Open the choke valve and set the throttle at a slightly high-idle position. Be
sure to have a helper hold the model securely. Give the propeller a few quick
flips. When the engine starts, allow it to idle for 30–45 seconds in order for
it to warm up to operating temperature. At this point you can proceed to test
the carburetor settings before flying your model. See the following section
regarding carburetor adjustment.
3) If the engine does not start, leave the throttle at the high-idle position,
turn the ignition off, then on and close the choke valve. Start the engine
with throttle at the fast-idle position and the choke valve closed. The
engine should fire and quit. If it does, repeat step 2 above.
4) At this point, if the engine still will not start, unscrew the spark plugs
and check the contacts. Clean any possible excess fuel (an indication of
engine flooding) and screw them in again. Further starting should only be
done with the throttle at idle position and the choke in the open position.
If the plug is dry, then probably not enough fuel has been drawn into the
carburetor. If that is the case, check for proper fuel feed and then return to
the instructions given in paragraph 1.
Having started the engine, leave it running for about 5 minutes at a higher idle speed. Then run it for about 20 minutes, while changing
revolutions from idle to 1/2–3/4 of the range and shortly holding each position—gradually prolong the holding periods. After 10 minutes of
operation, open the throttle to maximum for a period of about one minute. At this point, stop the engine and let it cool down. Then restart it
and check the adjustment. If everything is all right, you can make your first flight. During the first few flights. do not overload the engine and
do not let it run at high revolutions for long periods of time (very important during hot weather). Use up all the fuel that was mixed with the oil
that is included with your engine. From then on, fuel and oil should be mixed in the proportion 40:1.
Carburetor Adjustment
First, start and warm the engine for 30–45 seconds before attempting to adjust the carburetor. In order to confirm your engine is properly
adjusted, you should follow the procedure below.
Starting the Engine
The new Evolution Engine carburetor comes adjusted to a basic setting. This setting should be maintained during the initial break-in runs.
Before you first start the engine, make sure that the spark plug is screwed in and tightened and the plug socket is fitted in place and fastened down
properly. Fix the ignition sensor in the proper position above the magnet with the screws enclosed. Follow the directions in the Ignition System addendum
to program the ignition module in your model.
Important: Never turn the engine over with the ignition turned on unless the spark plug is inserted in the plug socket.
This could lead to ignition damage.
Starting the Engine, Continued
1) Move the throttle from idle to 2/3 of the full throttle position quickly (fast
acceleration). Then repeat three times – if the engine accelerates smoothly,
go to step 3 below. If acceleration is not smooth, go on to step 2.
2) Faulty acceleration and a tendency to quit is usually attributable to a poor
fuel mixture in the medium rpm range. Stop the engine and recheck the
fuel feed (the fuel line must not be pinched or broken). Restart the engine
and test acceleration again. If the problem persists, adjust the carburetor.
Open the low-speed needle by 1/8 turn and retest. If acceleration is smooth,
open the needle by another 1/8 turn—this should be done because the
needle was previously set too lean; if atmospheric conditions have changed
recently you may have to readjust the needle. If the engine continues to
not accelerate properly, open the low-speed needle by 10 minutes. If the
engine’s operation does not improve, shut it off and check the basic setting,
restart the engine and test the acceleration. If the engine runs correctly,
go to step 3. If it continues to not accelerate properly, open the low-speed
needle by another 10 minutes. If acceleration is faulty, the defect is likely to
lie somewhere other than an incorrect adjustment.
3) If the engine accelerates correctly, according to the above test, set it at
idle speed and accelerate to full speed. Repeat twice more. If the engine
functions correctly, go to step 4. If it cuts out, open the low-speed needle by
another 1/8 turn more.
4) If the engine reacts correctly set it at full speed. If revolutions do not drop,
the engine has been adjusted successfully. If revolutions seem to drop, open
the high-speed needle by approx. 5–10 minutes.
CAUTION The engine must be stopped while you adjust the
carburetor in order to prevent injury by the propeller.
Carburetor Adjustments 80GX
Basic setting:
Adjust needle (L) for low rpm range 1 turn and 55 minutes.
Adjust needle (H) for high rpm 1 turn and 15 minutes.
Ignition Programming Sequence
Changing the Ignition Timing
If using the battery test function
- Make sure plug cap is attached to the plug
- Turn on ignition and power up
- Wait about 90 seconds until sleep mode is active; LED will begin
flashing once per second
- If battery test is enabled (jumper is plugged) remove the jumper
from programming pins
- Wait about 3 seconds; a flashing sequence changes itself
- Unplug battery
- Plug jumper back (to enable battery test)
If not using the battery test function
- If battery test is disabled (jumper is removed), plug the jumper to
programming pins
- Wait about 3 seconds until flashing sequence changes
- Unplug battery
- Unplug jumper back (to disable battery test)
To change silencer type, repeat the procedure again:
short muffler ➭ tuned pipe ➭ short muffler, etc.