🏷️ Basic Information

Make:

Hyosung

Model:

Aquila GV650

Chassis Code:

GV650

👋 Introduction

Positioning:

The Hyosung Aquila GV650 is positioned as a stylish and accessible cruiser motorcycle, often competing in the mid-size cruiser segment with models from Japanese and American manufacturers, offering a distinctive aesthetic and V-twin character at a competitive price point.

Competitors:

Competes with motorcycles like the Honda Shadow series, Yamaha V-Star series, and potentially lower-displacement Harley-Davidson models depending on market segment.

Features:

Key features include its potent 647cc V-twin engine, cruiser styling with ample chrome accents, comfortable riding position, and often a shaft drive (though this model utilizes belt drive), providing a unique value proposition in its class.

📋 Manual Details

Primary Coverage:

Comprehensive service, repair, and workshop procedures for the Hyosung Aquila GV650.

Secondary Coverage:

Periodic maintenance, troubleshooting, diagnostics, and component overhauls.

Estimated Pages:

Information not explicitly provided in product description, but typical for workshop manuals of this scope is 300-600 pages.

Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Detailed information on engine disassembly, assembly, inspection, timing, and component specifications. Covers the 647cc V-twin engine.

Fuel System:

Includes fuel injection system (EFI), fuel pump, injectors, fuel tank, and fuel lines. Troubleshooting and component testing.

Cooling System:

Covers the liquid cooling system, radiator, coolant flow, thermostat, water pump, and hoses. Maintenance and bleeding procedures.

Electrical System:

Extensive coverage of the wiring harness, battery, charging system (alternator, regulator/rectifier), ignition system, starting system, lighting, and instruments. Includes wiring diagrams.

Chassis:

Details on frame, front suspension (forks), rear suspension (shock absorber, linkage), steering system, and wheels/tires.

Braking System:

Information on front and rear brake calipers, master cylinders, brake lines, brake pads, and brake fluid. Service and bleeding procedures.

Drive Train:

Covers the transmission, clutch, and final drive (belt drive system, including belt tension and replacement).

Frame And Bodywork:

Covers frame inspection, body panel removal and installation, seat, fuel tank, fenders, and exhaust system.

Maintenance:

Scheduled maintenance, fluid changes (oil, coolant, brake fluid), filter replacements, chain/belt adjustments, and spark plug replacement.

Repair:

Step-by-step repair instructions for all major components and systems, including engine rebuilds, suspension overhauls, and electrical system repairs.

Troubleshooting:

Diagnostic procedures for common problems, symptom-based troubleshooting guides, and fault code interpretation (if applicable to EFI system).

Inspection:

Guidelines for inspecting wear and tear on various components, safety checks, and pre-ride inspections.

Wheel And Tire Service:

Procedures for wheel bearing inspection, tire mounting/disassembly, and wheel balancing.

Suspension Service:

Fork oil replacement, seal replacement, rear shock absorber inspection, and linkage maintenance.

Depth:

Comprehensive, covering from basic owner maintenance to in-depth engine and transmission rebuilds. Suitable for professional mechanics and experienced DIY enthusiasts.

Diagnostic Charts:

Likely includes diagnostic flowcharts for common starting, running, and electrical issues.

Torque Specifications:

Provides critical torque values for engine, chassis, and fastener tightening, essential for correct assembly and safety.

Special Tools:

May list required or recommended special tools for specific procedures, such as flywheel pullers or calibration tools.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely text-searchable if the PDF is well-produced from original digital sources or scanned with OCR.

Quality:

Depends on the source PDF. Typically digital PDFs offer high resolution suitable for printing.

Binding:

Not applicable for PDF format. If printed, binding would depend on the provider.

Paper:

Not applicable for PDF format. If printed, standard manual paper stock is expected.

⚙️ Engine Specifications

Engine Type:

Liquid-cooled, 4-stroke, 8-valve, DOHC, V-twin

Displacement:

647 cc

Bore X Stroke:

71.5 mm x 83.0 mm

Compression Ratio:

11.0:1 (Typical)

Horsepower:

Approximately 70-80 HP (varies by specific model year and tuning).

Torque:

Approximately 60-65 Nm (varies by specific model year and tuning).

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded gasoline

Oil Type:

Typically SAE 10W-40 motorcycle-specific engine oil meeting API SG or higher, JASO MA specifications. Consult manual for precise specification.

Oil Capacity:

Approximately 3.4 liters (with filter change). Consult manual for precise capacity.

🔧 Transmission

Transmission Type:

5-speed constant mesh

Final Drive:

Belt drive

Clutch Type:

Wet, multi-plate

Gear Ratios:

Specific ratios are detailed within the workshop manual.

📐 Dimensions

Length:

Approximately 2300 mm (2.3 m)

Width:

Approximately 880 mm (0.88 m)

Height:

Approximately 1150 mm (1.15 m)

Dry Weight:

Approximately 200 kg

Wet Weight:

Approximately 220 kg (fully fueled and with all fluids)

Fuel Capacity:

Approximately 17 liters

Front Tire Size:

120/70-18

Rear Tire Size:

170/80-15

Wheel Type:

Cast aluminum alloy

🛡️ Safety Features

Braking System:

Dual disc front brakes, single disc rear brake. ABS was an optional feature on some later models.

Lighting:

Halogen headlamp, LED taillight and turn signals (depending on year/market).

Instrumentation:

Analog speedometer and tachometer, digital display for fuel level, odometer, trip meter. Warning lights for oil pressure, engine, neutral, turn signals, etc.

💡 Technology Features

Features:

Basic rider information through analogue and digital displays. No advanced infotainment systems are typically found on this model.

Features:

ABS was an optional safety feature on later models. The primary focus is on the mechanical and electrical systems for reliable operation.

Features:

No specific connectivity features are standard on this model.

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 km or 6-12 months, whichever comes first. Consult manual for precise interval and oil specification.

Spark Plug Replacement:

Generally around 10,000-20,000 km, depending on plug type. Manual will specify correct type and gap.

Belt Tension Check:

Regular checks are critical for belt drive systems, usually at every service interval or as specified by the manufacturer to prevent premature wear or damage.

Coolant Type:

Ethylene glycol-based antifreeze coolant. Specific mix ratio (e.g., 50/50) and type (e.g., HOAT or OAT) should be confirmed in the manual.

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid. Manual will specify the exact requirement.

Common Issues:

Some owners report occasional issues with the regulator/rectifier, fuel pump reliability, and potential corrosion on certain components if not maintained. The belt drive requires specific tensioning and inspection. The manual addresses diagnostic procedures for these and other potential concerns.

📚 Vehicle History

Manufacturer:

Hyosung (now often branded as S&T Motors or KR Mobility in some markets) is a South Korean manufacturer known for producing a range of motorcycles, scooters, and ATVs, often offering competitive performance and features at attractive price points.

Gv650 Lineage:

The Aquila GV650 was introduced in the mid-2000s and has seen various updates and revisions throughout its production life, focusing on refining its cruiser styling and V-twin performance. It is a key model in Hyosung's cruiser lineup.

Production Period:

Production commenced around 2005-2006 and has continued through subsequent years, with updates to emissions standards and features affecting later models.

🏆 Awards & Recognition

Achievements:

Specific awards are not widely publicized for the Hyosung Aquila GV650. Its value proposition is generally seen in its styling, V-twin performance, and competitive pricing rather than extensive accolades.