Hyosung GF125 Service Repair Workshop Manual

Name: Hyosung GF125 Service Repair Workshop Manual
Brand: Hyosung
SKU: 121138
Price: 16.99 USD
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The GF125 is a versatile motorcycle model that has been available from 1997 onwards. Designed as an entry-level sport or naked motorcycle, it appeals to riders seeking accessible performance and...

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Taper: Motorcycle

Distributeur:

Hyosung

UGS: 121138

Mots clés: GF125 Hyosung Motorcycle Motorcycles

Variantes de produits

Description

The GF125 is a versatile motorcycle model that has been available from 1997 onwards. Designed as an entry-level sport or naked motorcycle, it appeals to riders seeking accessible performance and style. A South Korean manufacturer is known for its motorcycles, scooters, and ATVs, often contributing OEM components to other brands. The GF125 likely features a 125cc class engine, possibly single-cylinder and air or liquid-cooled, delivering an estimated 10-15 HP. Its engineering focuses on reliability and providing a solid foundation for riders entering the motorcycle world. This comprehensive Service Repair Workshop Manual for the GF125, covering all models from 1997 onwards, provides in-depth information for owners and technicians. The manual details essential maintenance procedures, including oil changes, filter replacements, and lubrication, alongside troubleshooting guidance for common and uncommon faults. It covers complete engine disassembly and assembly, gearbox and clutch service, braking system maintenance, suspension adjustments, and all aspects of the electrical system, complete with detailed wiring diagrams. With step-by-step instructions and highly detailed exploded views, this English-language manual empowers users to effectively maintain, diagnose, and repair their GF125, offering professional-grade information for cost-effective upkeep.

🏷️ Basic Information

Identification

Make:

Hyosung

Model:

GF125

Codes

Engine Code Placeholder:

Likely a 125cc class engine, specific codes not provided.

👋 Introduction

Market Position

Target Audience:

Owner-operators, DIY mechanics, and independent repair shops for the Hyosung GF125.

Competitive Analysis

Manual Advantage:

Provides professional-grade information, rivaling dealership-level resources for cost savings and DIY capabilities.

Key Features

Instant Download:

Immediate access post-payment, eliminating shipping delays and costs.

Comprehensive Coverage:

Covers the entire vehicle, from engine internals to bodywork and electrical systems.

Ease Of Use:

User-friendly PDF format with clear, step-by-step instructions and detailed diagrams.

📋 Manual Details

Coverage Areas

Model Years Covered:

1997 onwards

Trim Levels Covered:

All GF125 models

Page Count

Estimated Page Count:

Unknown - typically between 200-500 pages for comprehensive service manuals.

Manual Type

Type:

Service Repair Workshop Manual

Language

Language:

English

Format

Digital Format:

PDF

📖 Manual Coverage

Systems Covered

Engine:

Complete engine disassembly, assembly, diagnostics, and tuning.

Gearbox Clutch:

Gearbox inspection, repair, clutch adjustment and replacement.

Cooling System:

Radiator, hoses, thermostat, coolant replacement, and system pressure testing.

Fuel System:

Carburetor (likely) or fuel injection system, fuel pump, fuel lines, filter replacement.

Braking System:

Brake pad replacement, caliper service, brake fluid flush and bleed, master cylinder inspection.

Suspension:

Front forks, rear shock absorber, linkage maintenance and adjustment.

Electrical System:

Battery, charging system, ignition system, lighting, starter motor, and all electrical components.

Body Fixtures:

Fairings, seat, tank, handlebars, controls, and external fittings.

Exhaust System:

Exhaust pipe and muffler inspection, removal, and installation.

Wheels Tyres:

Wheel bearing service, tire inspection and replacement, spoke tensioning (if applicable).

Wiring Diagrams:

Comprehensive wiring diagrams for all electrical systems.

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication points.

Troubleshooting:

Diagnostic procedures for common and uncommon faults across all systems.

Repair Rebuild:

Step-by-step instructions for component removal, repair, and reassembly.

Adjustments:

Carburetor, clutch, throttle, brakes, suspension, and electrical component adjustments.

Specifications:

Detailed technical specifications for all components and systems.

Technical Depth

Depth:

Covers all repair procedures from basic maintenance to complete engine and component rebuilds.

Diagrams:

Highly detailed exploded views and diagrams for all procedures.

📊 Manual Specifications

File Format

Compatibility:

PC & MAC Compatible PDF

Print Quality

Printability:

Printable; users can print specific sections as needed.

Binding Type

Digital Binding:

N/A (Digital Download)

Paper Type

Digital Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Likely a single-cylinder, four-stroke, air-cooled or liquid-cooled engine.

Displacement:

125cc class (specific model designation not provided).

Performance

Horsepower Output Estimate:

Estimated 10-15 HP range for a 125cc sport/naked bike of this era.

Torque Output Estimate:

Estimated 8-12 Nm range.

Fuel System

Fuel Delivery:

Likely a Mikuni or Keihin carburetor, or early EFI depending on exact sub-model and year.

Lubrication

Oil Type Specification Example:

Likely SAE 10W-40 motorcycle-specific oil (check manual for exact grade).

Cooling

Cooling Method:

Air-cooled or Liquid-cooled (manual will specify).

🔧 Transmission

Standard

Gearbox Type:

Likely a constant-mesh, sequential manual gearbox.

Features

Clutch Type:

Wet, multi-plate clutch.

Drive Type:

Chain drive.

📐 Dimensions

Exterior

Overall Length Estimate:

Typical for a 125cc sport/naked bike: ~2000 mm.

Weights

Dry Weight Estimate:

Typical for a 125cc sport/naked bike: ~130-150 kg.

🛡️ Safety Features

Active Features

Braking System Type:

Front: Disc brake. Rear: Disc or Drum brake (manual will specify).

Passive Features

Frame Type:

Likely a steel diamond or twin-spar frame.

💡 Technology Features

Infotainment

Instrument Cluster:

Likely analog speedometer and tachometer, with basic indicator lights.

Driver Assistance

ABS Availability:

ABS was not common on 125cc motorcycles of this era. Likely not equipped.

🔧 Maintenance

Service Intervals

Oil Change Interval Example:

Typically every 3,000-5,000 km or 6-12 months, depending on usage (refer to manual).

Spark Plug Replacement Example:

Every 6,000-10,000 km (refer to manual for specific plug type and gap).

Fluid Specifications

Brake Fluid Specification Example:

DOT 4 recommended for most motorcycles of this era.

Coolant Type Example:

Ethylene glycol-based coolant, typically a 50/50 mix with distilled water (if liquid-cooled).

Known Issues

Typical Wear Items:

Chain and sprockets, brake pads, tires, fork seals, and potential carburetor jetting issues due to age.

Electrical Component Wear:

Age-related degradation of wiring harnesses and connectors, especially in humid environments.

📚 Vehicle History

Brand Heritage

Hyosung History:

Hyosung Motors & Machinery Inc. is a South Korean manufacturer known for motorcycles, scooters, and ATVs, often providing OEM components for other brands as well.

Model Evolution

Gf125 Positioning:

The GF125 was positioned as an entry-level sport or naked motorcycle, catering to riders seeking accessible performance and style.

Production

Production Period Context:

The '1997 Onwards' coverage suggests this model was produced through the late 90s and into the 2000s.

🏆 Awards & Recognition

Recognitions

Model Specific Awards:

No widely publicized awards or specific recognitions found for the Hyosung GF125.