Purpose:
This manual serves as the definitive guide for maintaining, diagnosing, and repairing the 2004 Yamaha YZF-R1S/SC motorcycle, mirroring the information used by authorized Yamaha dealerships.
User Benefits:
Empowers owners and technicians with the knowledge to perform all service tasks, from routine maintenance to complex overhauls, ensuring optimal performance and longevity of the motorcycle. Offers significant cost savings compared to dealership labor.
Market Segment:
High-performance supersport motorcycle segment, competing with models from Honda (CBR954RR/CBR1000RR), Suzuki (GSX-R1000), Kawasaki (ZX-10R), and Ducati (999).
Engine:
Detailed coverage including engine mechanical, engine coolant, engine control system, emission control systems, camshaft, cylinder head, cylinder block, lubrication system, oil filter, oil pump, cooling system, cooling fan system, thermostat, water pump.
Drivetrain:
Clutch system, clutch unit, clutch start switch, clutch release cylinder, clutch master cylinder, transmission systems (manual transaxle), drive shaft, drive belt, differential case assembly.
Chassis:
Brake system (front and rear brakes, brake fluid, brake booster, brake master cylinder, brake actuator), suspension systems (front suspension, rear suspension, rear coil spring, rear shock absorber), steering system, wheel and tire system, torque converter clutch, torque specifications.
Electrical:
Ignition system, charging system, starting system, starter Assy, fuel injection system (SFI system), combination meter, lighting system, horn, power window control system, power door lock control system, power mirror control system, supplemental restraint system (SRS), seat belt warning system, airbags (passenger airbag, side airbag), wiring diagrams, wire harness repair, ECU diagnostics.
Bodywork:
Fairings, fuel tank, seat, headlights, taillights, fenders, and related mounting hardware.
Emission Control:
Exhaust system, catalytic converter (if applicable by market), emission control related components and diagnostics.
Instrumentation Controls:
Combination meter, switches, levers, and cables.
Maintenance:
Regular maintenance tasks, fluid changes, filter replacements, lubrication points, valve clearance adjustment.
Repair:
Step-by-step repair procedures for all major components, including complete disassembly and reassembly instructions.
Troubleshooting:
Extensive troubleshooting guides for diagnosing and resolving common and complex issues, including electrical system diagnostics and wiring troubleshooting.
Diagnostics:
Detailed diagnostic procedures for engine, electrical, fuel, and chassis systems, including fault codes if applicable to the ECU.
Installation:
Instructions for installing and adjusting various components and accessories.
Depth Of Information:
Comprehensive and detailed, suitable for both DIY enthusiasts and professional mechanics. Includes detailed illustrations, drawings, and photos for each procedure.
Illustrations:
Hundreds of detailed illustrations, drawings, and photographs to guide users through procedures.
Engine Type:
Inline 4-cylinder, liquid-cooled, DOHC, 16-valve
Bore X Stroke:
74.0 mm x 58.0 mm
Compression Ratio:
12.3:1
Horsepower:
Approximately 152 hp (at crankshaft, depending on specific market tuning)
Torque:
Approximately 10.5 kg-m / 103 Nm (at crankshaft, depending on specific market tuning)
Fuel Delivery:
Fuel Injection
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Throttle Body:
4x 45mm throttle bodies with dual injectors per cylinder.
Instrumentation:
Multi-function digital LCD instrument cluster including speedometer, tachometer, odometer, trip meters, clock, fuel gauge, water temperature gauge, and indicator lights. Analog-style tachometer face with digital readout.
Traction Control:
None (This model predates widespread adoption of electronic rider aids like traction control on superbikes).
Engine Management:
Advanced fuel injection system with dual injectors per cylinder for optimal fuel atomization and power delivery across the rev range.
Oil Change Interval:
Every 6,000 km (3,700 miles) or 6 months, whichever comes first.
Filter Change Interval:
Every 12,000 km (7,500 miles) or 12 months.
Valve Clearance Check:
Every 24,000 km (15,000 miles) or 24 months.
Engine Oil Type:
Yamalube 4 (10W-40) or equivalent API SG or higher, JASO MA certified 4-stroke motorcycle oil.
Engine Oil Capacity:
3.4 L (3.6 US qt, 3.0 Imp qt) without filter change; 3.5 L (3.7 US qt, 3.1 Imp qt) with filter change.
Coolant Type:
Permanent type anti-freeze coolant (ethylene glycol based) mixed with distilled water in a 50:50 ratio.
Brake Fluid Type:
FMVSS 116 DOT 4
Coolant Capacity:
2.2 L (2.3 US qt, 1.9 Imp qt)
Common Wear Items:
Clutch plates, brake pads, chain and sprockets are common wear items due to the performance nature of the motorcycle. Fuel pump issues can occur with age and fuel quality.
Electrical Quirks:
While generally reliable, some early models might experience minor electrical gremlins if not properly maintained, especially concerning wiring harness integrity. The manual addresses diagnosis of these.
