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Yamaha MT125 User Manual

Yamaha MT125
96 pages
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PANTONE285C
MT125
MT125A
OWNER’S MANUAL
5D7-F8199-E4
Read this manual carefully before operating this vehicle.
[English (E)]

Table of Contents

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Yamaha MT125 Specifications

General IconGeneral
Engine TypeLiquid-cooled, 4-stroke, SOHC, 4-valves
Displacement124.7cc
Bore x Stroke52.0 mm x 58.6 mm
Compression Ratio11.2:1
Fuel SystemFuel Injection
Ignition SystemTCI
Starter SystemElectric
TransmissionConstant Mesh, 6-speed
Final DriveChain
Front BrakeHydraulic single disc, Ø292 mm
Rear BrakeHydraulic single disc, Ø220 mm
Front Tyre100/80-17 M/C
Rear Tyre140/70-17 M/C
Dimensions (L x W x H)1, 960 mm x 800 mm x 1, 065 mm
Seat Height810 mm
Minimum Ground Clearance140 mm
Wet Weight142 kg
Rear SuspensionSwingarm
Maximum Torque11.5 Nm (1.16 kg-m) @ 8, 000 rpm

Summary

Safety Information

Be a Responsible Owner

Owner's responsibility for safe motorcycle operation and knowledge of requirements before riding.

Safe Riding

Guidelines for safe motorcycle operation, including pre-operation checks and visibility.

Protective Apparel

Recommended safety gear to prevent injury during motorcycle accidents, emphasizing helmets and protective clothing.

Avoid Carbon Monoxide Poisoning

Precautions against deadly carbon monoxide gas from engine exhaust in enclosed or poorly ventilated areas.

Loading

Guidelines for safely adding accessories or cargo to the motorcycle to maintain stability and avoid accidents.

Description

Controls and Instruments

Diagram and identification of the motorcycle's handlebar controls, levers, and dashboard instruments.

Instrument and Control Functions

Main Switch/Steering Lock

Operation of the main switch for ignition, lighting, and steering lock functions.

Indicator Lights and Warning Lights

Explanation and identification of various indicator and warning lights on the instrument panel.

Engine Trouble Warning Light

Function and check procedure for the engine trouble warning light indicating electrical circuit issues.

ABS Warning Light (for ABS Models)

Operation and meaning of the ABS warning light for models equipped with Anti-lock Brake System.

Tachometer High-RPM Warning Light

Functionality and activation/deactivation of the tachometer's high-rpm warning light.

Multi-Function Meter Unit

Overview of the multi-function meter unit, its components, and display capabilities.

For Your Safety – Pre-Operation Checks

Operation and Important Riding Points

Starting the Engine

Procedure for starting the engine, including ignition circuit cut-off system requirements.

Engine Break-in

Critical break-in period guidelines for the first 1000 km to ensure engine longevity.

Periodic Maintenance and Adjustment

Periodic Maintenance Chart for the Emission Control System

Schedule for checking and maintaining emission control system components based on mileage.

General Maintenance and Lubrication Chart

Schedule for general maintenance and lubrication tasks based on mileage and annual checks.

Engine Oil and Oil Filter Element

How to check engine oil level, change oil, and replace the oil filter element.

Coolant

Procedure for checking and maintaining the coolant level in the reservoir and radiator.

Tires

Essential maintenance for tires, including air pressure, inspection, and type specifications.

Checking the Front and Rear Brake Pads

How to inspect front and rear brake pads for wear using indicator grooves.

Checking the Brake Fluid Level

Procedure for checking the brake fluid level and replenishing if necessary.

Changing the Brake Fluid

Information on changing brake fluid, oil seals, and brake hoses at specified intervals.

Battery

Maintenance of the battery, including checking electrolyte level and lead connections.

Replacing the Fuses

Procedure for identifying, removing, and replacing blown fuses in the fuse box.

Front Wheel (for Non-ABS Models)

Instructions for removing and installing the front wheel on non-ABS models.

Rear Wheel (for Non-ABS Models)

Instructions for removing and installing the rear wheel on non-ABS models.

Troubleshooting

General guidance on troubleshooting common motorcycle problems and when to seek dealer assistance.

Troubleshooting Charts

Diagnostic flowcharts for common starting and engine performance issues.

Engine Overheating

Steps to take if the engine overheats, including safety precautions for the radiator cap.

Motorcycle Care and Storage

Consumer Information

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