🏷️ Basic Information Identification Make: Hyosung Model: Comet 650 S R Product Type: Service and Repair Manual 👋 Introduction Market Position Motorcycle Segment: Sportbike / Naked Sportbike Competitive Analysis Competitors: Directly competes with other mid-sized naked and faired sportbikes from manufacturers like Kawasaki (Ninja 650/ER-6n), Suzuki (SV650), Yamaha (FZ6/MT-07), and Honda (CB500F/CBR500R). Key Features Design Philosophy: Offers a performance-oriented V-twin engine in a sporty chassis, providing a balance of power, handling, and aggressive styling at a competitive price point. 📋 Manual Details Coverage Areas Manual Coverage Scope: Comprehensive service, repair, diagnostics, and maintenance for Hyosung Comet 650 S and R models. Page Count Estimated Page Count: 400-600 pages (typical for this class of motorcycle manual) Manual Type Manual Type: Factory-level Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Detailed breakdown of the 650cc V-twin engine, including cylinder head, valve train, crankshaft, piston, connecting rods, lubrication system, cooling system, and fuel injection. Fuel System: EFI system diagnostics, fuel pump, injectors, throttle body, sensors (TPS, MAP, IAT, ECT), and emissions control. Transmission: Clutch operation, gear shifting mechanism, gearbox internals, lubrication, and troubleshooting. Electrical System: Battery, charging system (stator, regulator/rectifier), ignition system (ECU, coils, spark plugs), lighting, starter motor, and wiring diagrams for all circuits. Chassis And Suspension: Frame inspection, front fork service (oil change, seal replacement), rear shock absorber adjustment and overhaul, steering head bearing service. Brakes: Front and rear brake caliper overhaul, master cylinder service, brake line replacement, bleeding procedures, pad and disc inspection and replacement. Cooling System: Radiator, coolant hoses, thermostat, water pump, and coolant flush and refill procedures. Exhaust System: Exhaust pipe inspection, muffler, and lambda sensor (if applicable). Bodywork And Trim: Fairing removal and installation, seat, fuel tank, fenders, and other cosmetic components. Wheels And Tires: Wheel bearing inspection and replacement, tire pressure, and mounting/balancing procedures. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, spark plug inspection/replacement, chain adjustment and lubrication, brake fluid checks, coolant level checks. Troubleshooting: Systematic diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable), and problem isolation techniques. Engine Rebuild: Detailed instructions for engine disassembly, inspection of internal components, reassembly, and break-in procedures. Suspension And Steering Overhaul: Fork seal replacement, shock absorber rebuild, steering stem bearing replacement. Brake System Overhaul: Caliper rebuild, master cylinder replacement, line bleeding. Electrical Diagnostics And Repair: Wiring diagram interpretation, component testing, fault finding for lighting, ignition, charging, and starter systems. Fuel System Cleaning And Adjustment: Injector cleaning, throttle body synchronization, sensor testing. Technical Depth Depth Of Information: Provides detailed specifications, torque values, clearance measurements, diagnostic procedures, and step-by-step repair instructions suitable for both DIY enthusiasts and professional mechanics. 📊 Manual Specifications File Format File Type: PDF Print Quality Print Readability: High-resolution, fully searchable text and clear, legible diagrams for easy printing and on-screen viewing. Binding Type Binding: Not Applicable (Digital PDF Download) Paper Type Paper Quality: Not Applicable (Digital PDF Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 4-stroke, 8-valve, DOHC, 90-degree V-twin Displacement: 647cc Bore X Stroke: 81.5 mm x 62 mm Compression Ratio: 11.3:1 Max Power: Approximately 80 HP (59.6 kW) @ 9000 rpm (Varies slightly by model year and specific variant) Max Torque: Approximately 63 Nm (46.5 lb-ft) @ 7000 rpm (Varies slightly by model year and specific variant) Performance Top Speed: Estimated 210+ km/h (130+ mph) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with dual throttle bodies Fuel Type: Unleaded gasoline, minimum 91 octane Fuel Tank Capacity: Approximately 17 Liters (4.5 US gal) 🔧 Transmission Standard Transmission Type: Constant-mesh, 6-speed Clutch Type: Wet, multi-plate Features Final Drive: O-ring sealed chain 📐 Dimensions Exterior Length: Approximately 2100 mm (82.7 in) Width: Approximately 750 mm (29.5 in) Height: Approximately 1100 mm (43.3 in) Wheelbase: Approximately 1445 mm (56.9 in) Weights Dry Weight: Approximately 170-180 kg (375-397 lbs) (Varies by specific model and equipment) Wet Weight: Approximately 190-200 kg (419-441 lbs) (Varies by specific model and equipment) 🛡️ Safety Features Ratings Braking System: Dual hydraulic discs front, single hydraulic disc rear. ABS may be optional on certain model years/trims. Active Features Lighting: Halogen headlight, LED taillight, standard turn signals. Passive Features Frame Construction: Steel trellis frame providing rigidity and handling characteristics. 💡 Technology Features Infotainment Instrument Cluster: Digital/Analog combination instrument cluster featuring speedometer, tachometer, odometer, trip meters, fuel gauge, and indicator lights. Specific features may vary by model year. Driver Assistance ABS: Anti-lock Braking System (ABS) available as an optional feature on some Comet 650 S R models. Connectivity ECU Control: Engine Control Unit (ECU) manages fuel injection, ignition timing, and other engine parameters. Diagnostic capabilities are covered in the manual. 🔧 Maintenance Service Intervals Engine Oil Change: Every 6,000 km (3,700 miles) or 12 months, whichever comes first. Oil Filter Replacement: At each engine oil change. Air Filter Cleaning Or...