Segment:
        
        
            Cruiser Motorcycle, 125cc Segment
        
     
    
        
            Target Audience:
        
        
            Owners of Hyosung Aguila GV 125C, independent repair shops, parts suppliers, vintage motorcycle enthusiasts.
        
     
    
    
        
            Competitors:
        
        
            Other 125cc cruisers from brands like Honda (Shadow 125), Suzuki (Intruder 125), Yamaha (Virago 125), Keeway, or similar.
        
     
    
    
        
            Vehicle Style:
        
        
            Classic cruiser styling with a comfortable riding position and often a V-twin engine configuration for its segment.
        
     
    
        
            Manual Value Proposition:
        
        
            Provides definitive OEM part identification and numbers, crucial for maintaining the authenticity and correct function of the Hyosung Aguila GV 125C.
        
     
 
    
    
    
        
            Engine:
        
        
            Engine components, internal and external parts, cooling system components, lubrication system components.
        
     
    
        
            Transmission:
        
        
            Gearbox components, clutch assembly parts, drive train elements (e.g., chain, sprockets if applicable).
        
     
    
        
            Chassis:
        
        
            Frame components, suspension parts (front fork, rear shock absorber), steering system components.
        
     
    
        
            Braking System:
        
        
            Brake caliper parts, master cylinder components, brake lines, brake pads, brake discs.
        
     
    
        
            Fuel System:
        
        
            Carburetor components (if applicable), fuel tank, fuel lines, fuel filter.
        
     
    
        
            Electrical System:
        
        
            Ignition system components, lighting components, wiring harness sections, battery, starter motor, generator/alternator.
        
     
    
        
            Bodywork And Trim:
        
        
            Body panels, fairings, seats, handlebars, controls, mirrors, fenders, exhaust system components.
        
     
    
    
        
            Part Identification:
        
        
            Detailed exploded views of all major assemblies and sub-assemblies, enabling precise identification of individual parts.
        
     
    
        
            Part Numbering:
        
        
            Provides the official Hyosung part numbers for every listed component, crucial for ordering replacements.
        
     
    
        
            Assembly Diagrams:
        
        
            Illustrates how components fit together within specific systems.
        
     
    
    
        
            Depth:
        
        
            Highly detailed, focused on parts and their specific OEM (Original Equipment Manufacturer) part numbers. Essential for maintenance, repair, and restoration where accurate component sourcing is critical.
        
     
 
    
    
    
        
            Engine Type:
        
        
            V-Twin, 4-stroke
        
     
    
        
            Displacement:
        
        
            125cc (approx. 124.7cc)
        
     
    
        
            Bore X Stroke:
        
        
            Typically around 49mm x 66mm (exact values may vary slightly based on revision).
        
     
    
        
            Cooling System:
        
        
            Liquid-cooled (most common for this model, check specific variants).
        
     
    
        
            Valve Train:
        
        
            SOHC (Single Overhead Camshaft) or DOHC (Dual Overhead Camshaft), 2 or 4 valves per cylinder (refer to specific diagrams).
        
     
    
    
        
            Horsepower:
        
        
            Typically in the range of 14-15 HP (approx. 10-11 kW) at around 10,000 RPM (regulated by license class).
        
     
    
        
            Torque:
        
        
            Around 10-11 Nm at approximately 8,000 RPM.
        
     
    
    
        
            Induction:
        
        
            Carburetor (often dual Mikuni or similar, specific model dependent) or Fuel Injection (EFI) on later models.
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline (Octane rating as per manual, typically 91 RON or higher).
        
     
 
    
    
    
        
            Crash Test Information:
        
        
            N/A (Motorcycle safety ratings are not standardized like passenger vehicles; focus is on braking, handling, and rider protection equipment).
        
     
    
    
        
            Braking System Front:
        
        
            Disc brake (typically single caliper, e.g., 2-piston).
        
     
    
        
            Braking System Rear:
        
        
            Disc brake (typically single caliper, e.g., 2-piston) or Drum brake on some early models.
        
     
    
        
            Lighting:
        
        
            Halogen headlamp, LED or incandescent tail/brake lights and turn signals.
        
     
    
    
        
            Frame Construction:
        
        
            Steel frame (e.g., double cradle)
        
     
 
    
    
    
        
            Display:
        
        
            Analog speedometer, tachometer, odometer, and indicator lights.
        
     
    
    
        
            ABS:
        
        
            Anti-lock Braking System (ABS) was an optional feature on some later models or specific market variants.
        
     
    
    
        
            Charging System:
        
        
            12V electrical system with an alternator/stator and battery.
        
     
 
    
    
    
        
            First Service:
        
        
            Typically 1000 km or 1 month (whichever comes first) for initial break-in service (oil change, chain adjustment, general check).
        
     
    
        
            Regular Oil Change:
        
        
            Every 4000-6000 km or 6-12 months (refer to specific manual for exact interval).
        
     
    
        
            Air Filter Replacement:
        
        
            Every 10,000-15,000 km or as per inspection results.
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 12,000-18,000 km, or based on wear assessment.
        
     
    
        
            Chain Maintenance:
        
        
            Lubrication and tension check every 1000 km; adjustment as needed.
        
     
    
    
        
            Engine Oil Type:
        
        
            SAE 10W-40 API SG or higher motorcycle-specific oil.
        
     
    
        
            Engine Oil Capacity:
        
        
            Approx. 1.7 - 1.9 Liters (with filter change).
        
     
    
        
            Coolant Type:
        
        
            Ethylene glycol-based antifreeze coolant mixed with distilled water (50/50 ratio).
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 4 or DOT 5.1 brake fluid (check specific manual).
        
     
    
        
            Transmission Oil Type:
        
        
            Refer to manual; often same as engine oil or a specific gear oil designation.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch plates, brake pads, tires, wheel bearings, steering head bearings are typical wear items.
        
     
    
        
            Electrical Gremlins:
        
        
            Wiring harness connections and grounds can sometimes be a source of intermittent electrical issues on older bikes.
        
     
    
        
            Carburetor Issues:
        
        
            If carbureted, synchronization and jetting can be sensitive to altitude or modifications, leading to rough running.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            Hyosung Motors & Machinery Inc. (South Korea)
        
     
    
    
        
            Introduction Period:
        
        
            The Aguila line was introduced in the early 2000s.
        
     
    
        
            Key Updates:
        
        
            Potential updates include fuel injection adoption, minor styling revisions, and regulatory compliance changes over its production run.
        
     
    
    
        
            Production Years:
        
        
            Mid-2000s to late 2010s (specific model years vary by region and availability).
        
     
    
        
            Manufacturing Location:
        
        
            South Korea