Yamaha-YZF-R125-Service-Manual

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🏷️ Basic Information Identification Make: Yamaha Model: YZF-R125 Product Name: Yamaha YZF-R125 Service Manual Codes Product Code: YAMAHA-YZF-R125-SERVICE-MANUAL 👋 Introduction Market Position Segment: Entry-level sportbike, popular in the European and...

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类型: Motorcycle

斯库: 406361

标签: Motorcycle Motorcycles Yamaha YZF Models YZF-R125

产品多属性

Description

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

YZF-R125

Product Name:

Yamaha YZF-R125 Service Manual

Codes

Product Code:

YAMAHA-YZF-R125-SERVICE-MANUAL

👋 Introduction

Market Position

Segment:

Entry-level sportbike, popular in the European and Asian markets for its accessible performance and styling.

Competitive Analysis

Competitors:

Honda CBR125R, KTM RC 125, Kawasaki Ninja 125, Aprilia RS 125.

Key Features

Design Philosophy:

R-Series DNA with aggressive styling, lightweight Deltabox frame, and sporty ergonomics.

Target Audience:

New riders, younger riders, commuters seeking a sporty and stylish motorcycle.

📋 Manual Details

Coverage Areas

General Coverage:

Comprehensive coverage of all aspects of the Yamaha YZF-R125 motorcycle.

Specific Systems Covered:

Engine, Fuel System, Cooling System, Exhaust System, Drivetrain, Transmission, Chassis, Suspension, Brakes, Electrical System, Ignition System, Lighting, Instruments, Bodywork, Troubleshooting, Maintenance.

Page Count

Estimated Pages:

300-400

Manual Type

Type:

Factory Service Manual / Workshop Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine:

Detailed breakdown of the 125cc liquid-cooled 4-stroke engine, including assembly, disassembly, inspection, and repair of all components.

Fuel System:

Coverage of the fuel injection system, injectors, throttle body, fuel pump, fuel filter, and related sensors.

Cooling System:

Information on the liquid cooling system, radiator, water pump, thermostat, coolant hoses, and proper coolant types and capacities.

Exhaust System:

Details on exhaust manifold, catalytic converter, muffler, and emissions control components.

Drivetrain:

Information on the chain drive system, including sprocket inspection, replacement, and adjustment procedures.

Transmission:

Complete guide to the 6-speed constant mesh transmission, including gear inspection, shift drum, shift forks, and transmission oil specifications.

Chassis:

Details on the aluminum Deltabox frame, swingarm, and subframe.

Suspension:

In-depth coverage of the front upside-down telescopic fork and rear Monocross suspension, including disassembly, assembly, oil levels, and fork seal replacement.

Brakes:

Comprehensive brake system service for front and rear disc brakes, including caliper overhaul, pad replacement, master cylinder service, and brake fluid specifications and bleeding procedures.

Electrical System:

Detailed wiring diagrams, troubleshooting guides for electrical faults, component identification, and testing procedures for the entire electrical system.

Ignition System:

Information on the CDI ignition system, spark plug specifications, ignition coil testing, and timing procedures.

Lighting:

Details on headlight, taillight, turn signals, and instrument panel lighting, including bulb types and replacement.

Instruments:

Information on the digital instrument cluster, including tachometer, speedometer, fuel gauge, and warning lights.

Bodywork:

Procedures for removing and installing fairings, seat, fuel tank, and other body panels, including fastener torque specifications.

Troubleshooting:

Extensive troubleshooting section covering common problems, diagnostic procedures, and corrective actions for various issues.

Maintenance:

Routine maintenance procedures, lubrication points, and inspection checklists.

Procedures Included

Preventive Maintenance:

Scheduled maintenance tasks, including oil changes, filter replacements, chain lubrication, brake checks, and tire pressure checks.

Diagnostic Procedures:

Step-by-step guides for diagnosing engine performance issues, electrical faults, and other common problems.

Repair Procedures:

Detailed instructions for disassembling, cleaning, inspecting, repairing, and reassembling all major components and systems.

Overhaul Procedures:

Complete overhaul instructions for the engine, transmission, and suspension components.

Torque Specifications:

Comprehensive list of all critical torque specifications for fasteners throughout the motorcycle.

Wiring Diagrams:

Clear and detailed electrical wiring diagrams for easy troubleshooting and component identification.

Special Tools:

Identification and usage instructions for any special tools required for specific maintenance or repair tasks.

Technical Depth

Depth:

Comprehensive, suitable for both experienced mechanics and advanced DIY enthusiasts. Covers everything from basic fluid changes to full engine rebuilds and advanced diagnostics.

📊 Manual Specifications

File Format

Format Type:

Searchability:

Searchable text for quick information retrieval.

Resolution:

High-resolution scans for clear diagrams and text.

Print Quality

Printability:

Printable pages for use in a workshop environment.

Binding Type

Binding:

Not applicable (Digital PDF)

Paper Type

Paper:

Not applicable (Digital PDF)

Completeness

Completeness:

Factory original content, ensuring complete and accurate information.

⚙️ Engine Specifications

Primary Engine

Engine Type:

Liquid-cooled, 4-stroke, SOHC, 4-valve, single-cylinder

Displacement:

124.66 cc

Bore X Stroke:

52.0 mm x 58.7 mm

Compression Ratio:

11.2:1

Performance

Max Power:

11.0 kW (15 PS) @ 10,000 rpm (approximate, varies by market/restriction)

Max Torque:

12.4 Nm (1.26 kgf-m) @ 8,000 rpm (approximate)

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI) with Mikuni throttle body

Fuel Type:

Unleaded gasoline, minimum 91 octane

Lubrication

Oil Type:

Yamaha Genuine Motor Oil 10W-40 API SG or higher, JASO MA or MA2

Oil Capacity With Filter:

1.00 L

Oil Capacity Without Filter:

0.90 L

🔧 Transmission

Standard

Transmission Type:

6-speed, constant mesh

Clutch Type:

Wet, multiple-disc

Features

Final Drive:

Chain drive

Transmission Oil Type:

Yamalube Gear Oil SAE 80 API GL-4 or equivalent

Transmission Oil Capacity:

0.70 L

📐 Dimensions

Exterior

Length:

1,955 mm

Width:

680 mm

Height:

1,065 mm

Wheelbase:

1,355 mm

Ground Clearance:

155 mm

Seat Height:

825 mm

Weights

Wet Weight:

138 kg (with all fluids and a full tank)

Fuel Tank Capacity:

11.5 Liters

🛡️ Safety Features

Ratings

ABS Availability:

Available on some models/markets (check specific model year)

Active Features

Braking System:

Front: Hydraulic disc, Rear: Hydraulic disc

Tires Front:

100/80-17M/C 52S

Tires Rear:

140/70-17M/C 66S

Passive Features

Lighting:

LED headlight and taillight for improved visibility

💡 Technology Features

Infotainment

Instrument Cluster:

Full digital LCD instrument cluster featuring a bar-style tachometer, digital speedometer, odometer, trip meter, fuel gauge, clock, and indicator lights.

Driver Assistance

Anti-lock Braking System available as an option on certain model years for enhanced braking safety.

Connectivity

Connectivity Features:

No integrated smartphone connectivity or advanced electronic rider aids beyond ABS.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 5,000 km or 6 months, whichever comes first.

Oil Filter Replacement:

Every 10,000 km or 12 months.

Air Filter Cleaning/Replacement:

Inspect every 5,000 km, clean or replace as needed.

Spark Plug Replacement:

Every 10,000 km (check condition at 5,000 km).

Valve Clearance Check:

Every 20,000 km.

Fluid Specifications

Coolant Type:

Yamaha Genuine Coolant (Blue) or equivalent high-quality ethylene glycol-based coolant with demineralized water (50:50 mixture).

Brake Fluid Type:

DOT 4

Known Issues

Common Problems:

Occasional radiator leaks (check hoses and connections), some models may experience minor electrical gremlins if not maintained properly, clutch slave cylinder seal wear (rare).

Troubleshooting Focus:

Manual provides detailed diagnostics for fueling issues, starting problems, and performance fluctuations.

📚 Vehicle History

Brand Heritage

Manufacturer:

Yamaha Motor Company, a Japanese manufacturer known for its motorcycles, marine products, and musical instruments.

Model Evolution

Introduction Year:

Updates:

Received updates over the years, including aesthetic changes, minor engine refinements, and introduction of ABS on certain models.

Production

Manufacturing Origin:

Thailand

🏆 Awards & Recognition

Recognitions

Market Awards:

Consistently praised for its styling and handling in its segment by motorcycle publications.