🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Model Code: RS125 Year: 1999-2004 Codes Chassis Code Range: RP, RL 👋 Introduction Market Position Target Audience: Aprilia RS 125 owners seeking to perform maintenance and repairs themselves, independent repair shops. Competitive Analysis Value Proposition: Provides factory-level repair information, enabling significant cost savings compared to professional servicing. Key Features Accessibility: Instant download, available anytime, anywhere. Comprehensiveness: Covers all service and repair jobs, from basic maintenance to complex overhauls. Quality: Professional quality, detailed, factory-type documentation. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive Service and Repair Page Count Estimated Page Count: 400+ Manual Type Manual Type: Factory-Type Service/Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine disassembly, assembly, tuning, lubrication system, cooling system, fuel system (carburetor), exhaust system. Engine Electrical: Ignition system, starting system, charging system, CDI unit, wiring diagrams, troubleshooting. Transmission: Gearbox disassembly, assembly, inspection, clutch operation and adjustment, gear shift mechanism. Chassis: Frame inspection, swingarm, rear shock absorber, linkage. Suspension: Front fork (upside-down) overhaul, damper rod, seals, oil specifications, rear shock absorber adjustment. Brakes: Front and rear brake system inspection, hydraulic system bleeding, pad replacement, caliper service, master cylinder overhaul. Wheels And Tires: Wheel bearing inspection and replacement, tire pressure specifications, rim sizes, spoke tension adjustment (if applicable). Fuel System: Carburetor identification (e.g., Dell'Orto PHBH), jetting specifications, float adjustment, fuel tank, fuel lines. Electrical System: Headlight, taillight, indicators, horn, battery specifications, fuse box, ignition switch, wiring harness routing. Bodywork And Fairings: Fairing removal and installation, seat, tank, handlebars, footpegs, levers, and controls. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, chain adjustment and lubrication, coolant checks, brake fluid checks. Troubleshooting Guides: Step-by-step diagnostic procedures for common and uncommon issues. Engine Rebuilds: Detailed instructions for top-end and bottom-end engine rebuilds, including piston, ring, and cylinder service. Carburetor Tuning: Idle speed adjustment, mixture control, jetting changes based on altitude and modifications. Suspension Setup: Fork oil level and type, spring preload adjustment, damping adjustments. Electrical Diagnostics: Use of multimeters, testing components, identifying short circuits and open circuits. Brake System Maintenance: Bleeding sequence, fluid types, seal replacement. Technical Depth Depth Of Information: Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Diagrams And Illustrations: High-quality, detailed diagrams and exploded views of all major components. Torque Specifications: Precise torque values for all critical fasteners. Clearances And Tolerances: Specified clearances for engine components, bearings, and other critical parts. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Printability: Printable pages for on-hand reference. Print Quality Image Resolution: High-resolution images and diagrams suitable for clear viewing. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) ⚙️ 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 (approx.) Compression Ratio: Variable depending on model year/variant, typically 8.5:1 - 9.5:1 Power Output: Approximately 15-33 hp (depending on restrictor status and model variant) Torque Output: Approximately 11-16 Nm (depending on model variant) Performance Reed Valve System: Yes, typically multi-petal reed block. Exhaust System: Expansion chamber, often with a catalytic converter in later models (EU emissions). Fuel System Carburetor Type: Dell'Orto PHBH 28/30 (common), Keihin (less common) Fuel Type: Unleaded gasoline (minimum 95 RON recommended), 2-stroke oil injection. Oil Injection System: Automatic oil-fuel mixing system. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Clutch Type: Wet, multi-plate Features Gear Ratios: Specific gear ratios detailed in the manual, varying slightly by year/model. Final Drive: Chain drive, typically 12/40 or similar ratio. Transmission Oil Type: API GL-4, SAE 75W/90 or 80W/90 gear oil (check manual for specific capacity). 📐 Dimensions Exterior Length: Approx. 1990 mm Width: Approx. 750 mm Height: Approx. 1100 mm Wheelbase: Approx. 1375 mm Weights Dry Weight: Approx. 110-115 kg Fuel Tank Capacity: Approx. 12 liters Oil Tank Capacity: Approx. 1.5 liters 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle - compliance with road regulations) Active Features Braking System: Hydraulic disc brakes front and rear. Brembo calipers common on many models. Lighting: Halogen headlight, LED taillight/brake light (depending on year), turn signals. Passive Features Chassis Design: Aluminum twin-spar frame for rigidity and light weight. Ergonomics: Sportbike riding position, adjustable levers. 💡 Technology Features Infotainment Infotainment Features: N/A (Focus on performance and riding dynamics) Driver Assistance Rider Assistance: N/A (Basic motorcycle controls) 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000 - 5,000 km or annually, depending on usage and oil quality. Spark Plug Check: Every 3,000 - 6,000 km. Replacement frequency depends on plug type. Air Filter Cleaning: Every 3,000 - 5,000 km. Service more frequently in dusty conditions. Chain Lubrication And Adjustment: Every 500 - 1,000 km or after washing/wet riding. Coolant Check And Flush: Check level regularly. Flush and replace every 2 years....