Desert Aircraft DA50 EFI Manuel utilisateur
DA50 EFI
Electronic Fuel Injected Engine
OWNER’S MANUAL
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
2
See HFE “Released Documents” folder for latest revision.
Document Revision Table
Rev
Description of change
Revised by
Revision
Date
Approved
By
Approved
Date
A
Initial Release
DMcClain
01/16/19
TWest
01/16/19
B
Update Spark Plug Callout
DMcClain
07/29/19
DRB
7/31/19
C
Format and part list update
R.Shoemaker
2/11/20
DRB
2/12/20
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
3
See HFE “Released Documents” folder for latest revision.
Table of Contents
Section Page
1. General Safety 4
2. Un-Packing Your Engine 5
3. Getting Started 10
a. Hardware Installation 10
b. Transmitter/Receiver Set Up 11
c. Starting Engine 12
4. Maintenance 13
5. ECM Signal Data 14
a. Blink Patterns 15
6. Technical Specifications 16
a. Battery Recommendations 16
7. Warranty Information 17
8. Replacement Pats List 19
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
4
See HFE “Released Documents” folder for latest revision.
1. General Safety
Read and understand this Owner’s Manual before operating your engine. You can help
prevent accidents by being familiar with the controls and observing safe operating
procedures.
Operator’s Responsibility:
1. The operator should know how to stop the engine quickly in case of an
emergency.
2. A safety zone around the propeller should be established in which no person
or object is allowed to enter. Install a guard around the propeller when
appropriate.
WARNING
1. Observe all safety precautions when working around the propeller.
2. Exhaust contains poisonous carbon monoxide, a colorless and odorless gas.
Breathing carbon monoxide can cause loss of consciousness and may lead to
death.
3. Never run your engine in an enclosed space. Always allow for appropriate
ventilation.
4. Observe precaution around the muffler. The exhaust system gets hot enough
to ignite some materials.
5. Keep flammable materials away from the engine.
6. Gasoline is extremely flammable and is explosive under certain conditions. Do
not smoke or allow flames or sparks where the engine is operating.
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
5
See HFE “Released Documents” folder for latest revision.
2. Un-Packing Your Engine
Caution
Your Engine comes with wire harnesses attached to the intake assembly. Handle the
engine with care when removing the assembly from the box.
Package Contents
1. Engine with Throttle Body Assembly
2. Engine Control Module (ECM)
3. Engine Wire Harness
4. ECM Input Harness
5. Owner’s Manual
6. Mufflers (If Ordered)
7. Installation hardware
8. Fuel Pump
9. Air Filter
10. Ignition and ECM mounting kit
ATTENTION
Observe Precautions for Handling
Electrostatic Sensitive Devices (ESD).
The ECM and Throttle servo on this engine contain sensitive electronic hardware. As a
result, this engine is packaged in electrostatic dissipative foam and contained in
electrostatic dissipative bags. Any handling of these devices should be contained in an
ESD safe area.
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
6
See HFE “Released Documents” folder for latest revision.
EFI Components and Descriptions
Figure 1: Engine Control Module (ECM)
Figure 2: ECM Input Harness from Receiver
14 Pin ECM
Receptacle
24 Pin ECM
Receptacle
MAP Inlet
14 Pin ECM Plug
Fuel Pump
CH 3 Servo
(Throttle)
Tach Output
Battery (12V)
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
7
See HFE “Released Documents” folder for latest revision.
Figure 3: Main Engine Harness
Figure 4: Assembly Hardware
24 Pin ECM
Plug
13 Pin Engine
Plug
Ignition
Crank Sensor
Exhaust Gaskets
(square holes)
Fuel line between fuel
tank and fuel pump
Vacuum line
between ECM and
engine
Fuel line between
engine and fuel pump
Heat Shrink: used to
connect CHT sensor to
wire harness
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
8
See HFE “Released Documents” folder for latest revision.
Figure 5: Fuel Pump
Figure 6: Engine and Crank Harness
Crank Sensor
Connector
13 Pin Engine
Receptacle
Fuel Out to Engine
Fuel In; from Fuel
Tank
Fuel Pump
Electrical
Connector
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
9
See HFE “Released Documents” folder for latest revision.
Figure 7: Intake Components
Figure 8: Throttle Body Gasket Order
Throttle Servo
Injector
MAP Outlet
Fuel Fitting
DA 50 EFI OWNER’S MANUAL HFEDCN0374 REV C
10
See HFE “Released Documents” folder for latest revision.
3. Getting Started
Engine Oil
This engine was calibrated using Red Line 2 Stroke Racing oil at a mix ratio of 40:1.
This oil type and mix ratio should be maintained to ensure that the fuel injection system
and engine operates as designed.
Oil Brand:
Red Line
Oil Type:
2 Stroke Racing Oil
Mix Ratio: 40:1
40 parts gasoline to one part oil.
Fuel Recommendations
The engine was calibrated with standard 87 octane gasoline.
a. Hardware Installation
1. Do not install the ECM to the engine or motor mount. The vibration will damage
the hardware. Route the ECM to a location inside the aircraft and mount it where
vibration is minimal. The ECM does not produce excessive heat and can be
encapsulated in foam to isolate it from vibration if needed.
2. Refer to the diagrams in section 2 for wire harness designations and
connections.
3. Install blue tube between the MAP inlet on the ECM and the MAP outlet on the
throttle body.
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