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Yamaha YZF-R125 2019 User Manual

Yamaha YZF-R125 2019
96 pages
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PANTONE285C
YZF125-A
YZF-R125
OWNER’S MANUAL
B5G-F8199-E1
MOTORCYCLE
[English (E)]
Read this manual carefully before oper-
ating this vehicle.

Table of Contents

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Yamaha YZF-R125 2019 Specifications

General IconGeneral
Engine TypeLiquid-cooled, 4-stroke, SOHC, 4-valve
Displacement124.7 cc
Bore x Stroke52.0 mm x 58.6 mm
Compression Ratio11.2:1
Max Power11.0 kW (15.0 PS) @ 9, 000 rpm
Fuel SystemFuel Injection
Ignition SystemTCI
TransmissionConstant Mesh, 6-speed
Final DriveChain
Front BrakeHydraulic single disc, Ø292 mm
Rear BrakeHydraulic single disc, Ø230 mm
Front Tyre100/80-17 M/C
Rear Tyre130/70-17 M/C
Dimensions (L x W x H)1, 955 mm x 680 mm x 1, 065 mm
Seat Height825 mm
Wheelbase1, 355 mm
Fuel Tank Capacity11.5 litres
Wet Weight142 kg
Max Torque8, 000 rpm
Front SuspensionUpside-down telescopic fork
Rear SuspensionSwingarm

Summary

Introduction and Safety Notice

Important Safety Notice

Please read this manual carefully and completely before operating this motorcycle.

Safety Information

Owner Responsibilities

Defines the owner's role in safe operation and regular maintenance.

Safe Riding Practices

General advice for safe motorcycle operation and rider conduct.

Protective Apparel Guidance

Recommends essential riding gear for rider safety.

Carbon Monoxide Poisoning Warning

Hazards of exhaust fumes and prevention measures.

Motorcycle Loading Safety

Guidelines for adding cargo to maintain stability and prevent accidents.

Vehicle Description

Left Side View Identification

Labels and identifies components visible on the left side of the motorcycle.

Right Side View Identification

Labels and identifies components visible on the right side of the motorcycle.

Controls and Instruments Identification

Locates primary handlebar controls and dashboard instruments.

Instrument and Control Functions

Main Switch and Steering Lock Operation

How to use the ignition switch and lock the steering.

Locking the Steering Mechanism

Step-by-step guide to lock the steering for security.

Indicator and Warning Lights Explained

Descriptions of dashboard lights and their meanings.

Engine Trouble and ABS Warning Lights

Specific warning light functions and required actions.

Multi-function Meter Unit Overview

Components and features of the digital display.

Self-Diagnosis Device Function

How the system detects and indicates electrical faults.

Left Handlebar Switches Explained

Details on turn signal, dimmer/pass, and horn switches.

Right Handlebar Switches Explained

Details on engine stop, start, and horn switches.

Anti-lock Brake System (ABS)

Explanation of ABS function, operation, and safety.

Ignition Circuit Cut-off System Test Procedure

Steps to verify the functionality of the safety system.

For Your Safety – Pre-Operation Checks

Operation and Important Riding Points

Engine Break-in Period Guidelines

Critical instructions for the engine's first 1000 km.

Starting the Engine Safely

Procedures for starting the engine, considering safety interlocks.

Shifting Gears and Transmission Operation

How to use the transmission for optimal riding control.

Braking Safety Warnings

Critical warnings about improper braking leading to loss of control.

Periodic Maintenance and Adjustment

Importance of Periodic Maintenance

Explains why regular checks and adjustments are vital for safety and efficiency.

Emission Control System Maintenance Chart

Schedule for maintenance tasks related to emission controls.

General Maintenance and Lubrication Chart

Comprehensive schedule covering all maintenance and lubrication tasks.

Engine Oil Filter and Cooling System Checks

Replacing oil filter and checking coolant level and system.

Spark Plug Checking and Replacement

How to inspect, clean, and replace the spark plug.

Engine Oil Level Check Procedure

How to correctly check the engine oil level.

Engine Oil and Filter Change Procedure

Step-by-step guide to changing engine oil and filter.

Coolant Level Check and Refilling

How to check coolant level and refill the reservoir.

Tire Air Pressure Checks

Importance and procedure for checking tire pressure before riding.

Tire Inspection and Tread Depth

How to inspect tires for wear, damage, and tread depth.

Brake Fluid Level Check

Procedure to check the brake fluid levels in the reservoirs.

Changing Brake Fluid and Seals

When and how to change brake fluid and related seals and hoses.

Replacing Vehicle Fuses

How to identify and replace blown fuses correctly.

Troubleshooting Chart: Starting Issues

Flowcharts for diagnosing fuel, battery, ignition, and compression problems.

Troubleshooting Engine Overheating

Steps to diagnose and resolve engine overheating issues.

Motorcycle Care and Storage

General Vehicle Washing and Cleaning

Proper methods for washing the motorcycle to maintain appearance and performance.

Specifications

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