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    Hyosung GT125 GT250 Comet Workshop Repair Manual

    $16.99
    $16.99
    The GT125 and GT250 Comet motorcycles, produced from 2002 onwards, represent a line of versatile machines known for their blend of classic styling and reliable performance. These bikes, often featuring...
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    Type: Motorcycle
    Vendor:
    Hyosung
    Sku: 121142
    Tags: GT125 GT250 GT250 Comet Hyosung Motorcycle Motorcycles
    The GT125 and GT250 Comet motorcycles, produced from 2002 onwards, represent a line of versatile machines known for their blend of classic styling and reliable performance. These bikes, often featuring V-twin engines and a naked sportbike or cruiser aesthetic, are engineered to provide an engaging riding experience for both new and experienced riders. With a focus on accessibility and straightforward mechanics, the Comet series has been a popular choice for those seeking a capable and enjoyable motorcycle for daily commuting and recreational riding. This comprehensive workshop repair manual provides in-depth guidance for the maintenance, troubleshooting, and repair of all GT125 Comet and GT250 Comet variants. Covering essential systems such as the engine, transmission, braking, suspension, and electrical components, this manual offers detailed, step-by-step instructions, exploded view diagrams, and critical technical specifications. It is an indispensable resource for DIY enthusiasts, independent mechanics, and owners aiming to ensure their motorcycle remains in optimal condition, facilitating efficient and accurate service.
    🏷️ Basic Information
    Identification
    Make:
    Hyosung
    Model:
    GT125 / GT250 Comet
    Codes
    Product Code:
    HYO-GT125-250-RM-INST
    👋 Introduction
    Market Position
    Target Audience:
    DIY enthusiasts, independent repair shops, and owners seeking detailed maintenance and repair guidance
    Competitive Analysis
    Value Proposition:
    Provides professional-grade repair information, saving significant costs compared to dealership service; instant access enhances usability.
    Key Features
    Instructional Style:
    Step-by-step instructions with detailed exploded view diagrams and pictures for clarity and efficiency.
    Accessibility:
    Instant download eliminates shipping costs and waiting times, providing immediate access to critical repair data.
    📋 Manual Details
    Coverage Areas
    Applicable Years:
    2002 Onwards
    Covered Models:
    All Hyosung GT125 Comet and Hyosung GT250 Comet variants
    Page Count
    Estimated Pages:
    Extensive (indicative of full workshop coverage)
    Manual Type
    Type:
    Workshop Repair Manual / Service Manual
    Language
    Language:
    English
    Format
    Delivery Format:
    Instant Download PDF
    📖 Manual Coverage
    Systems Covered
    Engine Systems:
    Engine overhaul, internal components, tuning, diagnostics, lubrication
    Transmission Clutch:
    Gearbox disassembly, reassembly, clutch operation, adjustment, replacement
    Cooling System:
    Radiator, hoses, thermostat, fan, coolant specifications and flushing
    Fuel System:
    Carburetor(s) disassembly, cleaning, adjustment, fuel pump, fuel lines, tank
    Braking System:
    Front and rear brake caliper service, master cylinder, brake lines, bleeding procedure, pad replacement
    Suspension Steering:
    Front forks, rear shock absorber, steering head bearings, linkage maintenance
    Electrical System:
    Ignition system, battery, charging system (stator, rectifier/regulator), lighting, starter motor, switches
    Body Fixtures:
    Fairings, seat, fuel tank removal, fenders, minor bodywork repairs
    Exhaust System:
    Exhaust pipe, muffler removal and installation, gasket replacement
    Wheels Tyres:
    Wheel bearing maintenance, tyre pressure, tyre replacement, wheel balancing
    Wiring Diagrams:
    Comprehensive electrical wiring schematics for all systems
    Procedures Included
    Maintenance:
    Routine maintenance checks, oil changes, filter replacements, chain adjustment, spark plug service
    Troubleshooting:
    Diagnostic procedures for common problems across all systems
    Repair Overhaul:
    Step-by-step instructions for component disassembly, inspection, repair, and reassembly
    Technical Depth
    Depth:
    Comprehensive professional-level coverage, suitable for major repairs and rebuilds
    📊 Manual Specifications
    File Format
    File Type:
    Portable Document Format (PDF)
    Compatibility:
    PC and MAC compatible
    Print Quality
    Printability:
    Printable on demand for specific sections or the entire manual
    Binding Type
    Digital Format:
    No physical binding; delivered digitally
    Paper Type
    Digital Medium:
    N/A (Digital file)
    ⚙️ Engine Specifications
    Primary Engine
    Engine Type Gt125:
    Likely a V-twin, liquid-cooled, 4-stroke
    Engine Type Gt250:
    Likely a V-twin, liquid-cooled, 4-stroke
    Performance
    Displacement Gt125:
    Approximately 124cc (Specific data would be in the manual)
    Displacement Gt250:
    Approximately 249cc (Specific data would be in the manual)
    Fuel System
    Fuel Delivery Typical:
    Carburetor(s) (Specific models might have EFI, but the manual likely covers carburetors as standard for these models)
    🔧 Transmission
    Standard
    Transmission Type:
    Constant mesh, 5-speed or 6-speed manual (specific number of gears would be detailed in manual)
    Optional
    Clutch Type:
    Wet multi-plate
    Features
    Drive Type:
    Chain drive
    📐 Dimensions
    Exterior
    Style:
    Naked Sportbike / Cruiser styling
    Weights
    Dry Weight Estimate:
    Approximately 150-170 kg (depending on model and engine size)
    🛡️ Safety Features
    Active Features
    Braking System Type:
    Disc brakes front and rear (specific configurations like single/dual disc would be detailed)
    Passive Features
    Lighting System:
    Halogen headlights, LED or incandescent taillights/indicators (details in electrical section)
    💡 Technology Features
    Infotainment
    Instrument Cluster:
    Analog or digital/analog combination for speedometer, tachometer, odometer, fuel gauge, and indicator lights.
    Driver Assistance
    ABS Availability:
    ABS was not standard on most models in this era; manual will indicate if applicable for specific variants.
    🔧 Maintenance
    Service Intervals
    Oil Change Interval:
    Typically every 3,000-5,000 km or annually (specific interval in manual)
    Spark Plug Replacement:
    Generally around 6,000-12,000 km (specific type and gap in manual)
    Fluid Specifications
    Engine Oil Type:
    API SG, SH, SJ or higher, SAE 10W-40 or 20W-50 motorcycle specific oil recommended (verify in manual)
    Coolant Type:
    Ethylene glycol based, permanent type antifreeze (50/50 mix with distilled water), specific type in manual
    Brake Fluid Type:
    DOT 4
    Known Issues
    Common Wear Items:
    Clutch plates, brake pads, fork seals, steering head bearings, rectifier/regulator (details for diagnosis and replacement are in the manual)
    Carburetor Tuning:
    Can be sensitive to altitude and air filter condition; requires periodic adjustment (manual covers this process)
    📚 Vehicle History
    Brand Heritage
    Manufacturer:
    Hyosung Motors & Manufacturing Co., Ltd. (South Korea)
    Model Evolution
    Design Influence:
    The Comet series typically draws inspiration from classic sportbike and cruiser designs, often featuring V-twin engines.
    Production
    Production Period Start:
    Early 2000s (as indicated by the 2002 onwards coverage)
    🏆 Awards & Recognition
    Recognitions
    Industry Recognition:
    N/A (Specific awards for Hyosung models of this era are not widely documented in general automotive press, focus is on repairability.)
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