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Yamaha 3FA-AE2 - User Manual

Yamaha 3FA-AE2
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YFM125S
3FA-AE2
SUPPLEMENTARY
SERVICE MANUAL

Questions and Answers

Summary

HOW TO USE THIS MANUAL

MANUAL ORGANIZATION

Explains the structure and organization of the service manual.

EXPLODED DIAGRAMS

Details the use and components of exploded diagrams for disassembly.

ILLUSTRATED SYMBOLS GUIDE

Chapter Subject Symbols

Indicates chapter subjects found on the top right of each page.

Specification Symbols

Identifies specifications appearing within the text of the manual.

Lubricant & Application Symbols

Illustrates types of lubricants and their specific application points.

Agent & Part Replacement Symbols

Indicates where to apply locking agents and when to install new parts.

GENERAL SPECIFICATIONS

Vehicle Dimensions

Details the physical measurements of the YFM125S model, including length, width, and height.

Vehicle Weight and Load

Provides dry, wet, and maximum load specifications for the vehicle.

Fuel System Specifications

Lists fuel type, tank capacity, and reserve amount for the YFM125S.

Electrical Specifications

Covers electrical specifications like ignition, generator, battery, and lighting.

Spark Plug Information

Specifies the type and recommended gap for the spark plug.

MAINTENANCE SPECIFICATIONS

Engine Carburetor Specifications

Lists detailed specifications for the carburetor, including jets and settings.

Chassis Tightening Torques

Details specific torque values for tightening chassis components.

ELECTRICAL SYSTEM COMPONENTS

C.D.I. Unit and Pickup Coil Specs

Specifies C.D.I. unit model and pickup coil resistance.

Charging System Details

Details charging system specifications like magneto and coil resistance.

Rectifier;Regulator Specifications

Lists rectifier/regulator type and capacity.

Electric Starting System

Provides data for the starter motor and starter relay.

Circuit Breaker Information

Identifies circuit breaker type and amperage ratings.

CABLE ROUTING PROCEDURES

Cable Routing Diagrams

Illustrates routing paths for various cables and wires on the vehicle.

Cable Routing Instructions

Provides step-by-step guidance for proper cable management and securing.

SEAT, CARRIERS AND FENDERS: PERIODIC CHECKS

Seat, Front Carrier, Bumper, Center Cover

Details removal/installation for seat, front carrier, bumper, and center cover.

FRONT GRILL ASSEMBLY AND FRONT FENDER

Front Grill and Fender Removal

Details the steps for removing the front grill assembly and front fender.

Front Grill;Fender Component ID

Identifies individual parts for removal and installation.

REAR CARRIER AND REAR FENDER

Rear Carrier and Fender Component ID

Identifies parts for removal and installation of rear carrier and fender.

Battery Connection Caution

Provides a caution for disconnecting battery leads during removal.

HEADLIGHT ADJUSTMENT AND REPLACEMENT

Adjusting Headlight Beams

Instructions for adjusting the vertical aim of the headlight beams.

Replacing Headlight Bulb

Step-by-step guide for removing and replacing the headlight bulb.

IGNITION SYSTEM CIRCUIT DIAGRAM

Ignition System Wiring

Detailed wiring diagram for the ignition system.

CHARGING SYSTEM CIRCUIT DIAGRAM

Charging System Wiring

Detailed wiring diagram for the charging system.

LIGHTING SYSTEM CIRCUIT DIAGRAM

Lighting System Wiring

Detailed wiring diagram for the lighting system.

LIGHTING SYSTEM TROUBLESHOOTING

Lighting Fault Diagnosis

Guides for diagnosing and resolving lighting system failures.

Fuse and Switch Checks

Procedures to check fuses, main switch, and light switch continuity.

Battery Condition Check

Procedure to check the battery condition and voltage.

SIGNAL SYSTEM CIRCUIT DIAGRAM

Signal System Wiring

Detailed wiring diagram for the signal system.

SIGNAL SYSTEM TROUBLESHOOTING

Horn Functionality Test

Steps to check horn switch continuity and voltage.

Horn Voltage Measurement

Procedure to measure voltage at the horn terminal.

Summary

HOW TO USE THIS MANUAL

MANUAL ORGANIZATION

Explains the structure and organization of the service manual.

EXPLODED DIAGRAMS

Details the use and components of exploded diagrams for disassembly.

ILLUSTRATED SYMBOLS GUIDE

Chapter Subject Symbols

Indicates chapter subjects found on the top right of each page.

Specification Symbols

Identifies specifications appearing within the text of the manual.

Lubricant & Application Symbols

Illustrates types of lubricants and their specific application points.

Agent & Part Replacement Symbols

Indicates where to apply locking agents and when to install new parts.

GENERAL SPECIFICATIONS

Vehicle Dimensions

Details the physical measurements of the YFM125S model, including length, width, and height.

Vehicle Weight and Load

Provides dry, wet, and maximum load specifications for the vehicle.

Fuel System Specifications

Lists fuel type, tank capacity, and reserve amount for the YFM125S.

Electrical Specifications

Covers electrical specifications like ignition, generator, battery, and lighting.

Spark Plug Information

Specifies the type and recommended gap for the spark plug.

MAINTENANCE SPECIFICATIONS

Engine Carburetor Specifications

Lists detailed specifications for the carburetor, including jets and settings.

Chassis Tightening Torques

Details specific torque values for tightening chassis components.

ELECTRICAL SYSTEM COMPONENTS

C.D.I. Unit and Pickup Coil Specs

Specifies C.D.I. unit model and pickup coil resistance.

Charging System Details

Details charging system specifications like magneto and coil resistance.

Rectifier;Regulator Specifications

Lists rectifier/regulator type and capacity.

Electric Starting System

Provides data for the starter motor and starter relay.

Circuit Breaker Information

Identifies circuit breaker type and amperage ratings.

CABLE ROUTING PROCEDURES

Cable Routing Diagrams

Illustrates routing paths for various cables and wires on the vehicle.

Cable Routing Instructions

Provides step-by-step guidance for proper cable management and securing.

SEAT, CARRIERS AND FENDERS: PERIODIC CHECKS

Seat, Front Carrier, Bumper, Center Cover

Details removal/installation for seat, front carrier, bumper, and center cover.

FRONT GRILL ASSEMBLY AND FRONT FENDER

Front Grill and Fender Removal

Details the steps for removing the front grill assembly and front fender.

Front Grill;Fender Component ID

Identifies individual parts for removal and installation.

REAR CARRIER AND REAR FENDER

Rear Carrier and Fender Component ID

Identifies parts for removal and installation of rear carrier and fender.

Battery Connection Caution

Provides a caution for disconnecting battery leads during removal.

HEADLIGHT ADJUSTMENT AND REPLACEMENT

Adjusting Headlight Beams

Instructions for adjusting the vertical aim of the headlight beams.

Replacing Headlight Bulb

Step-by-step guide for removing and replacing the headlight bulb.

IGNITION SYSTEM CIRCUIT DIAGRAM

Ignition System Wiring

Detailed wiring diagram for the ignition system.

CHARGING SYSTEM CIRCUIT DIAGRAM

Charging System Wiring

Detailed wiring diagram for the charging system.

LIGHTING SYSTEM CIRCUIT DIAGRAM

Lighting System Wiring

Detailed wiring diagram for the lighting system.

LIGHTING SYSTEM TROUBLESHOOTING

Lighting Fault Diagnosis

Guides for diagnosing and resolving lighting system failures.

Fuse and Switch Checks

Procedures to check fuses, main switch, and light switch continuity.

Battery Condition Check

Procedure to check the battery condition and voltage.

SIGNAL SYSTEM CIRCUIT DIAGRAM

Signal System Wiring

Detailed wiring diagram for the signal system.

SIGNAL SYSTEM TROUBLESHOOTING

Horn Functionality Test

Steps to check horn switch continuity and voltage.

Horn Voltage Measurement

Procedure to measure voltage at the horn terminal.

Yamaha 3FA-AE2 Specifications

General IconGeneral
BrandYamaha
Model3FA-AE2
CategoryMotorcycle
LanguageEnglish

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