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O.S. engine GF40U-FI User Manual

O.S. engine GF40U-FI
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2021.08.01
O.S. ENGINES MFG. CO., LTD.
4 stroke gasoline engine for UAV
GF40U-FI
With EC11 (ECU)
INSTRUCTION MANUAL
version 2.46E
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O.S. engine GF40U-FI Specifications

General IconGeneral
Cooling SystemAir-cooled
Type4-stroke
Fuel TypeGasoline
Recommended Propeller Sizes11x6, 12x6
IgnitionElectronic ignition
LubricationOil mixed with fuel

Summary

About the engine

Names of the parts

Accessories

Igniter

Details about the IG-08A igniter model, including power supply and connection.

Spark plug

Information on the NGK CM-6 spark plug, installation, and recommended tightening torque.

Fuel filter and Non-bubble weight

Description of inline fuel filter usage and non-bubble weight for fuel tanks to prevent air bubbles.

Hose clamp

Guidance on using hose clamps to fix pressurized tubes to joints, recommending specific tubing materials.

Connector lock

Purpose of connector locks for sensors and igniter power to prevent accidental disconnection.

Socket wrench (SST)

Details on a special tool for attaching/detaching temperature sensors like intake air and cylinder head.

Serial signal converter

Use of a converter for UART serial signal from ECU to RS-232C for computer connection.

Power supply code

Information regarding the power supply cord specifications, voltage range, and current limits.

Standard screw tightening torque

Installation: Standoff mount

Installation: Mounting plate (R)

Installation: Fuel delivery

Installation: Fuel pressure sensor unit

Installation: Generator

Engine control unit (ECU)

Wiring harness A (Sensor and Communication)

Details of Wiring harness A, connecting sensors and communication devices to the ECU.

Wiring harness B (Drive section)

Details of Wiring harness B, connecting drive components like fuel pump and injector to the ECU.

Pump connection cord

Description of the extendable pump connection cord for fuel system components.

Engine control unit (ECU): Component Connections

Crankshaft rotation sensor

Connection details for the crankshaft rotation sensor to the ECU, specifying signal and ground.

CAN communication

Information on the CAN communication connector, its pins, and signal types for the ECU.

Power supply

Specifies the power supply requirements, voltage range, and connection for the ECU.

Fuel pump

Details the connection for the fuel pump to the ECU, including voltage and ground.

Throttle servo

Connection instructions for the throttle servo to the ECU, detailing signal, power, and ground.

Injector

Details the connection for the injector harness to the ECU, specifying voltage and ground.

Operation: Starting the engine

Operation: LED message meaning

Operation: Stopping the engine

Mounting & Dismounting: Screw Tightening

Engine parts list

Dimensions

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