🏷️ Basic Information Identification Make: Yamaha Model: YZF-R1S / YZF-R1SC Year: 2004 Generation Model Generation: Second Generation (2004-2006) Codes Chassis Code: RN09 👋 Introduction Market Position Segment: High-performance Supersport Motorcycle Target Audience: Enthusiasts, DIY mechanics, and professional technicians working on Yamaha YZF-R1 models. Competitive Analysis Key Competitors: Honda CBR954RR Fireblade, Suzuki GSX-R1000 K4, Kawasaki ZX-10R Ninja, Ducati 999. Key Features Performance Focus: Emphasis on power, handling, and track-day capability. Engineering Philosophy: Yamaha's 'Kando' philosophy, aiming for emotional engagement and advanced technology. Manual Utility Value Proposition: Cost-effective alternative to dealership service, enabling owners to perform their own maintenance and repairs. 📋 Manual Details Coverage Areas Primary Coverage: Complete Service and Repair Included Variants: YZF-R1S, YZF-R1SC Page Count Estimated Page Count: 500+ Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download File Format File Type: PDF Searchability: Typically searchable text, allowing for quick access to specific information. Print Quality Quality: High-resolution scans, ensuring clarity of text and diagrams. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) 📖 Manual Coverage Systems Covered Engine: Comprehensive engine disassembly, assembly, diagnostics, and tuning for all components including crankshaft, pistons, valves, camshafts, and lubrication system. Fuel System: Detailed coverage of the fuel injection system (FI), throttle bodies, fuel pump, injectors, pressure regulator, and emissions control. Transmission: Complete service and repair for the 6-speed gearbox, clutch operation, gearbox internals, and shift mechanism. Chassis Suspension: In-depth procedures for front fork (USD) disassembly, service, adjustment, and rear shock absorber service and replacement. Includes swingarm and linkage maintenance. Brakes: Complete service for front and rear brake systems, including caliper overhaul, master cylinder service, brake line replacement, and bleeding procedures. Electrical System: Extensive coverage of wiring diagrams, component testing, ignition system, charging system (stator, regulator/rectifier), battery service, lighting, and starter system. Cooling System: Radiator, fan, coolant, thermostat, and water pump service and replacement procedures. Exhaust System: Information on exhaust manifold, catalytic converter (if applicable), and muffler service and replacement. Bodywork: Fairing removal and installation, seat, fuel tank, and minor body panel adjustments. Procedures Included Maintenance: Scheduled maintenance tasks, oil changes, filter replacements, spark plug servicing, chain adjustment, and brake pad inspection. Troubleshooting: Diagnostic flowcharts and step-by-step troubleshooting guides for common and intermittent issues across all major systems. Repair Rebuild: Detailed instructions for component disassembly, cleaning, inspection, repair, and reassembly for major mechanical and electrical parts. Diagnostics: Guidance on using diagnostic tools (if applicable) and interpreting error codes, along with manual diagnostic methods. Torque Specifications: Precise torque values for all critical fasteners and bolts throughout the motorcycle. Technical Depth Depth Level: Comprehensive (from routine maintenance to complete engine rebuilds and electrical system diagnostics). ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 4-stroke, DOHC, 5-valve per cylinder, inline-four Displacement: 998 cc Bore X Stroke: 74.0 mm x 58.0 mm Compression Ratio: 12.3:1 Performance Horsepower: Approx. 172 hp @ 11,000 rpm (claimed) Torque: Approx. 107 Nm (79 lb-ft) @ 9,000 rpm (claimed) Fuel System Fuel Delivery: Electronic Fuel Injection (Yamaha Fuel Injection - YFI) Throttle Control: Dual throttle valves per cylinder (YS YCC-T - Yamaha Chip Controlled Throttle) Ignition Ignition System: Digital TCI (Transistor Controlled Ignition) Lubrication Oil Type: Yamalube 4R or equivalent motorcycle-specific 10W-40 API SG, JASO MA 🔧 Transmission Standard Transmission Type: Constant mesh 6-speed Clutch Type: Wet, multiple disc, slipper clutch Features Gear Ratios: Refer to manual for specific ratios (e.g., 1st: 2.53, 2nd: 1.89, 3rd: 1.55, 4th: 1.33, 5th: 1.16, 6th: 1.00) Final Drive: O-ring sealed chain Fluid Specs Transmission Oil Type: Yamalube Hypoid Gear Oil SAE 80 or equivalent Fluid Capacity Transmission Oil Capacity: Approx. 0.85 L (0.89 US qt) 📐 Dimensions Exterior Length: 2,085 mm (82.1 in) Width: 705 mm (27.8 in) Height: 1,130 mm (44.5 in) Wheelbase: 1,405 mm (55.3 in) Ground Clearance: 135 mm (5.3 in) Weights Dry Weight: Approx. 177 kg (390 lbs) Wet Weight: Approx. 204 kg (450 lbs) Fuel Capacity: 18.0 L (4.8 US gal) Suspension Front Suspension: 43mm USD (Upright, Down-tube) telescopic fork, adjustable preload, compression, and rebound damping. Rear Suspension: Monoshock with adjustable preload, compression, and rebound damping. Link-type suspension. Wheels Tires Front Tire Size: 120/70ZR17 M/C (58W) Rear Tire Size: 190/50ZR17 M/C (73W) Front Wheel Type: 3.50 x 17 forged aluminum alloy Rear Wheel Type: 6.00 x 17 forged aluminum alloy 🛡️ Safety Features Ratings Safety Features: While dedicated crash ratings like cars are not applicable, design considerations prioritize rider protection and stability. Active Features Braking System: Radial-mount 4-piston calipers with dual 320mm discs (front), 220mm disc with 2-piston caliper (rear). Braided stainless steel lines. Lighting: Multi-reflector halogen headlights, LED tail light. Passive Features Frame Construction: Lightweight aluminum Deltabox frame with optimized rigidity balance. Ergonomics: Aggressive, forward-leaning riding posture designed for track performance and aerodynamic efficiency. 💡 Technology Features Infotainment Instrumentation: Digital tachometer, analog-style speedometer readout, gear position indicator, fuel gauge,...