Target Audience:
DIY enthusiasts and professional mechanics working on the Hyosung Aquila GV125.
Purpose:
To provide comprehensive technical information for the repair, maintenance, and adjustment of the Hyosung Aquila GV125.
Value Proposition:
Offers detailed, step-by-step procedures with ample illustrations, making complex repairs more accessible.
Clarity Of Explanation:
Prepared for simple explanation, enabling even new personnel to perform satisfactory service.
Completeness:
Stated as 100% complete and intact, covering all necessary aspects for service and repair.
Safety Emphasis:
Includes special remarks for DANGER, CAUTION, and NOTE to highlight safety-critical procedures.
Engine Mechanical:
Full disassembly, assembly, inspection, repair, and adjustment of engine components including cylinders, pistons, crankshaft, camshafts, valves, timing system, and cooling system.
Fuel System:
Carburetor inspection, cleaning, adjustment, and repair; fuel pump operation and testing; fuel tank and lines maintenance.
Ignition System:
Spark plug diagnosis, ignition coil testing, CDI unit inspection, timing adjustment procedures.
Transmission System:
Gearbox disassembly, inspection, reassembly, and adjustment; clutch operation, maintenance, and adjustment; transmission fluid specifications and change intervals.
Chassis And Suspension:
Front fork overhaul, rear shock absorber inspection and replacement, swingarm maintenance, steering head bearing service, wheel bearing replacement.
Braking System:
Brake caliper inspection and service, brake pad replacement, brake fluid bleeding and replacement, master cylinder inspection, brake line maintenance.
Electrical System:
Wiring diagrams, battery testing and maintenance, charging system diagnosis (stator, regulator/rectifier), starter motor operation, lighting system troubleshooting, fuse and relay identification.
Exhaust System:
Exhaust pipe and muffler inspection, gasket replacement, and tightening specifications.
Cooling System:
Radiator inspection and cleaning, coolant specifications and capacity, thermostat operation (if applicable, though GV125 is typically air-cooled, this covers general principles).
Maintenance:
Scheduled maintenance tasks, fluid level checks and changes, filter replacement (air, oil), lubrication points and recommendations, chain adjustment and lubrication.
Troubleshooting:
Diagnostic charts and procedures for common operating problems, symptom-based troubleshooting guides for engine, electrical, and chassis issues.
Removal Installation:
Step-by-step procedures for removing and installing all major components and sub-assemblies.
Disassembly Assembly:
Detailed instructions for taking apart and reassembling individual components and systems.
Adjustments:
Precise instructions for adjusting valves, carburetors, clutch, brake levers, and other mechanical settings.
Inspection Testing:
Procedures for inspecting wear and damage, testing component functionality, and verifying specifications.
Depth Of Coverage:
Comprehensive 'bumper to bumper' coverage, suitable for both novice DIY enthusiasts and experienced mechanics. Includes detailed explanations, pictorial diagrams, and exploded views.
Special Tools:
References and illustrations for special service tools required for specific repair and adjustment operations.
Tightening Torques:
Detailed torque specifications for all critical fasteners, ensuring proper assembly and reliability.
Wear Limits:
Specifications for wear limits of various components to aid in diagnosis and replacement decisions.
Diagrams Illustrations:
Abundant use of detailed illustrations, exploded diagrams, drawings, and photographs to clarify procedures.
Engine Type:
V-Twin, 4-stroke (typical for Aquila GV125)
Displacement:
125cc (as per model name)
Cooling System:
Air-cooled (typical for this model)
Horsepower:
Specifications will be detailed within the manual, typically around 12-15 HP for this displacement class.
Torque:
Specifications will be detailed within the manual, typical for this displacement class.
Fuel Delivery:
Carburetor(s) (likely twin carbs for V-twin configuration)
Fuel Type:
Unleaded gasoline (manual will specify octane rating).
Oil Change Interval:
Manual will specify interval in kilometers or months (e.g., every 3,000-5,000 km or 6-12 months).
Valve Adjustment Interval:
Manual will specify interval (e.g., every 6,000-10,000 km).
Spark Plug Replacement:
Manual will specify interval and type of spark plug.
Engine Oil Type:
Manual will specify viscosity grade (e.g., 10W-40) and API service classification (e.g., API SG or higher).
Engine Oil Capacity:
Manual will specify capacity in liters for oil and filter change, and for dry fill.
Brake Fluid Type:
Manual will specify type (e.g., DOT 3 or DOT 4).
Coolant Type:
If liquid-cooled, manual specifies type. For air-cooled, this is not applicable.
Common Wear Items:
Brake pads, tires, chain and sprockets, spark plugs, air filter, clutch plates.
Potential Issues Addressed In Manual:
Carburetor tuning issues, electrical component failures (regulator/rectifier), minor engine leaks, suspension wear.