Foxtech Halo-60 EFI Manuale utente

Halo-60 EFI Engine

User Manual

V1.0 2022.6

Table of Contents

1 General Safety ................................................................ 2

2 Un-Packing Your Engine ................................................ 3

3 Engine Installation & Getting Started ............................ 7

3.1 Hardware Installation .............................................. 7

3.2 Throttle Setting ........................................................ 8

3.3 Engine Oil Mix ....................................................... 9

4 Maintenance ................................................................. 11

5 Technical Specification ................................................ 12

3.4 Starting the engine for the first time......................... 9

Halo-60 EFI Engine User Manual

1General Safety:

Read and understand this Owner’s Manual before operating your engine. You can help to

prevent accidents by being familiar with the controls and observing safe operating

procedures.

Operator’s Responsibility:

1.1 The operator should know how to stop the engine quickly in case of any

Emergency.

1.2 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. Petrol is extremely flammable and is explosive under certain conditions. Do not smoke

Or allow Flames or sparks where the engine is operating

Halo-60 EFI Engine User Manual

2 Un-Packing Your Engine

Cautions：

Your Engine comes with wire harnesses attached to the intake assembly. Handle

the engine with care when removing the assembly from the box

Package List：

1. Engine with Intake Assembly

2. Engine (ECU)

3. Engine CDI

4. Fuel Pressure Regulator

5. Fuel Tubing

6. Main Wire Harness

7. Engine Assembly Hardware

8. Operation Manual

Halo-60 EFI Engine User Manual

Components & Descriptions

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Halo-60 EFI Engine User Manual

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Halo-60 EFI Engine User Manual

Assembly Hardware

七“心 t,8er 令

Fuel Filter: between fuel

tank and fuel pressure

regulator

Fuel Inlet Pipe Fuel Outlet Pipe

Caution: Strictly connect the wires, wrong connection may cause engine damage.

Halo-60 EFI Engine User Manual

3 Engine Installation & Getting Started

3.1Hardware Installation

1. Do not install the ECU, fuel pressure regulator and CDI to the engine or motor mount. The

vibration will damage the hardware. Route the ECU to a location inside the aircraft and

mount it where vibration is minimal. The ECU does not produce excessive heat and can be

encapsulated in foam to isolate it from vibration if needed.

2. Refer to the diagrams above and make sure wire harness of EFI are well designated &

Connected.

3. When the engine is mounted, make sure all the wiring harness are connected correctly &

the reliability for the connection. It is necessary to ensure the wiring harness does not rub

against the body part.

4. When the engine is installed, related shock absorption is required, and screw glue is used

to ensure reliable installation.

5. Connect the thin fuel line from the output port of the fuel pressure regulator to the oil inlet

of the throttle valve, push tubing past locking ring in blue to produce a proper seal and lock

it, in reverse push the locking ring to release the fuel line (do not fold or twist the fuel

line).

6. The fuel pressure regulator is installed close to the fuel tank. It is recommended not to be

higher than the fuel level, and ensure fuel inlet fuel line & fuel outlet fuel line be not bent

or folded; the thin fuel line connecting fuel pressure regulator & the engine should be kept

at least 30cm in length in order to reduce fuel pressure change.

7. Install the fuel filter between the fuel pressure regulator inlet and the fuel tank, ensure the

fuel line is connected properly in place; tighten the non-falling nut for fuel line.

8. Any 3 Cell Lipo or 4 Cell Lifepo4 or equivalent battery with a minimum of 2000 mAh

rating will run the engine for up to 2 continuous hours (5000 RPM/H). Halo-60 engine is

the latest version with CDI voltage from 4.8V-14V. Gaskets for Halo-60 engines (Since

September 2021) are in the latest material without air pollution restricted by some

countries.

Halo-60 EFI Engine User Manual

3.2 Throttle Setting

1. Throttle commands use standard RC TX/RX or flight controller. The voltage of throttle

servo installed on the engine is 6V-7.4V by RX or Flight Controller Channel

2. Before starting the engine, adjusting the exponential rate of TX throttle curve or flight

controller to get the desired throttle response with throttle air valve, which affects the

engine performance

Full Throttle On Full Throttle Off

3. Our EFI system does not need extra Throttle Kill Switch, the engine will stop and

automatically the power for fuel pressure regulator is cut off when throttle air valve is

fully off.

4. For UAV project with the engine applied, providing power to the enable line of

ECU,when the signal of flameout is given, the enable line on an optional module (not

recommend) will stop the engine. For most flight controllers on the market, 10% rate for

idle RPM is set and will not stop the engine until turning off the button on the flight

controller. Suggest the user to set up the idle rate on your TX or flight controller for the

first time to operate the engine. Properly adjust and set up the throttle curve and rate to

avoid the damage of throttle servo by dead steering.

Halo-60 EFI Engine User Manual

3.3 Engine Oil Mix

This engine was calibrated using 2 Stroke Racing oil at a mix ratio of 30:1 to 40:1. This oil

type and mix ratio should be maintained to ensure that the fuel injection system and engine

operates as designed.

Fuel Recommendations:

The engine was calibrated with standard 87 octane gasoline (in America), or standard petrol

91/95 in Australia, NEVER USE ETHANOL PETROL, recommended engine oil brand

MERCURY 2T，Red Line 2T，MOTUL 710/800 FD class

3.4 Starting the engine for the first time

1. Prime your system for the first time (or non-use for long time) by removing the fuel line

from the inlet of the throttle body

2. Cycle the battery power to the ECU in 5 second intervals until fuel is flowing from the

fuel line. Re-install the fuel line. You should not have to complete the priming process

again unless the engine fuel system is allowed to run dry or has been disconnected for any

reason

3. Manually hand rotate the propeller in few circles to make sure the hall sensor is working

in normal status (the sound “da.da”) with green LED light on & flashing in sync when the

engine is running in high speed, now next step starts after the fuel is in。

4. Verify that the throttle setting is at about 30%

5. The engine should be started using an external spinner, or using a built-in starting

alternator ( Be available on our One-Key Starter version soon). Flip starting as an

additional option but is not recommended due to possible injuries.

Note: The engine may struggle to run for the first few minutes as it is purging all the air

from the fuel system.

This may not be evident until you go to wide open throttle

6. Allow the engine to run for a few minutes to warm up the engine

7. Hold at wide open throttle for 15 seconds to verify that the air in the fuel system has been

purged. Reduce the engine speed to idle

Halo-60 EFI Engine User Manual

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