🏷️ Basic Information Identification Make: Aprilia Model: RS125 / Tuono Product Name: Aprilia RS125 RS 125 Tuono 99-05 Service Repair Workshop Manual Codes Vin Decoder Notes: Specific VIN ranges applicable for the exact model year can be found within the manual for precise identification. 👋 Introduction Market Position Segment: Lightweight sportbike, popular in European markets for its performance and handling characteristics, suitable for track days and spirited road riding. Competitive Analysis Competitors: Yamaha YZF-R125, Honda CBR125R, Suzuki GSX-R125, Kawasaki Ninja 125 (though some of these may be later models). Key Features Performance Oriented: Despite its 125cc displacement, the RS125 is known for its aggressive styling and performance-focused chassis and engine tuning. Design Heritage: Shares styling cues and engineering principles with larger Aprilia sportbikes, offering a premium feel in its class. Versatility Tuono: The Tuono variant offers a more naked, upright riding position, enhancing comfort for commuting and general use while retaining sporty characteristics. 📋 Manual Details Coverage Areas Applicable Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005 Additional Coverage Hint: Manual also provides extensive information for 1992-2005 models, with specific linkages to be confirmed via the provided external link. Page Count Page Count Estimate: Refer to specific product listing for exact page count, but typically comprehensive service manuals for this era are 300-600 pages. Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Format: Digital (likely PDF, subject to confirmation) 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures for the Rotax 125cc two-stroke engine. Fuel System: Carburetor tuning, cleaning, and overhaul (Dell'Orto PHBH 28/29 or similar), fuel pump, fuel lines, and tank inspection. Cooling System: Radiator maintenance, water pump, coolant flush and replacement, thermostat operation. Ignition System: CDI ignition, spark plug selection and gap, coil testing, wiring diagrams for ignition. Exhaust System: Expansion chamber maintenance, muffler inspection, sealing. Transmission And Clutch: Gearbox operation, clutch adjustment and replacement, chain and sprockets maintenance, lubrication. Frame And Suspension: Frame inspection, front fork (upside-down cartridge type) disassembly, servicing, and adjustment; rear shock absorber maintenance and settings. Brakes: Hydraulic front and rear brake systems, caliper overhaul, brake pad replacement, fluid flush and bleeding (DOT 4 specification likely), master cylinder inspection. Wheels And Tires: Wheel bearing inspection and replacement, tire pressure recommendations, tire inspection and replacement guidance, rim specifications. Electrical System: Complete wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), lighting, instrumentation, horn, starter motor (if applicable). Bodywork And Fairings: Fairing removal and installation, seat, tank, and tail section maintenance, graphical elements. Procedures Included Routine Maintenance: Oil changes (pre-mix or separate oil injection system), chain lubrication, filter cleaning/replacement, spark plug checks, general inspection. Troubleshooting: Diagnostic guides for common problems, symptoms, and potential causes across all major systems. Rebuilding Procedures: Detailed step-by-step instructions for engine rebuilds, carburetor overhaul, and suspension component servicing. Calibration And Adjustment: Carburetor jetting, ignition timing checks, clutch lever free play, brake lever reach, suspension sag adjustment. Electrical Diagnostics: Component testing, continuity checks, troubleshooting electrical faults using wiring diagrams. Torque Specifications: Essential torque values for critical fasteners throughout the motorcycle. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures for engine performance issues, electrical system faults, and chassis handling problems. Component Rebuild: Comprehensive instructions for complete disassembly and rebuild of major components like the engine, gearbox, and suspension. Service Data: Includes critical service data such as bore wear limits, ring gap specifications, bearing tolerances, and valve clearances (where applicable). Wiring Diagrams: Detailed, high-quality electrical wiring schematics for all model variants covered. 📊 Manual Specifications File Format File Type: Likely PDF, optimized for digital viewing and printing. Searchability: Text-searchable content for quick information retrieval (assuming a professionally produced digital manual). Print Quality Image Resolution: High-resolution diagrams, schematics, and photographs for clarity (expected quality). Binding Type Binding Type: N/A (for digital format), but if printed, typically spiral-bound or perfect-bound for durability. Paper Type Paper Type: N/A (for digital format), but for printed versions, high-quality, durable paper suitable for workshop environments. ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, single-cylinder Displacement: 124.8 cc (approx.) Bore X Stroke: 54 mm x 54.5 mm (typical for Rotax 125cc) Induction System: Reed valve induction, Dell'Orto carburetor (e.g., PHBH 28/29) Power Output: Approximately 15-30 hp, depending on specific market regulations and tune. European models often tuned for maximum performance. Torque Output: Specific figures vary, but peak torque typically found in the mid-to-high RPM range. Performance Top Speed Estimate: Can exceed 100 mph (160 km/h) in unrestricted configurations. Fuel System Fuel Type: Unleaded gasoline (RON 95 or higher recommended) Oil System: Typically oil injection (separate reservoir) or requires 2-stroke oil pre-mix in fuel. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Features Clutch Type: Wet multi-plate, cable-actuated Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1970 mm (RS125) Width: Approx. 740 mm (RS125) Height: Approx. 1145 mm (RS125) (seat height varies) Weights...