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Starting The Engine - O.S. engine GF40U-FI Instruction Manual

4 stroke gasoline engine for uav with ec11 ecu
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Starting the engine

【1】 Fill the fuel tank with fuel before turning on the switches of the ECU and the Igniter.
【2】 If there are air bubbles in the tube between the fuel tank and the fuel pump unit after filling up the
fuel tank, open the pressure release valve and eiminate the air bubbles.
Locate the pressure release valve in a
place easily accessible to open and close
it before/after a day's use.
【3】 Turn on the ECU.
【4】 Power LED is lit and Operation status LED blinks.
【5】 The Fuel pump starts working as soon as the ECU
is turned on. If the Pressure release valve is open,
close it only after airbubles in the system are gone.
When fuel pressure reaches specified value, the
Pump works intermittently or stops.
In case the the fuel pressure to the injector doesn't reach the specified value after turning on
the switch within 30 seconds, the ECU beeps intermittently and the pump stops. (Turn off
the switch and turn it on again when you reset theECU)
【6】 Move the throttle stick to check the movement of the throttle servo. If the ECU is in starting mode
and the Operation status LED is blinking, you can't close the throttle completely but it still remains open a
little even if you move the throttle stick fully down.
【7】 Position the throttle stick fully down when you start the engine.Preparation is complete.
【8】 Turn on the ignitor and start the engine with a starter.
【9】 Engine rpm goes up right after starting the engine, but it
goes down immediately.
【10】 Idling rpm control system starts working when cylinder head temperature
reaches the set temperature otherwise the idling rpm is kept at the set rpm.
Operation
Power LED (on)
Operation status LED (brink)
20
Installation example
ECU Status display LED
LED 1(off)
LED 2 (off)
LED 3 (off)

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