🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 2001 Product Type: Service and Repair Manual Codes Chassis Code Range: AP8114281, AP8114282, AP8114283, AP8114284, AP8114285, AP8114286 Engine Code Suffix: Rotax 122 👋 Introduction Market Position Segment: Lightweight Sportbike / Supersport Motorcycle Target Audience: Enthusiasts, DIY mechanics, aspiring racers, and owners seeking self-sufficiency in maintenance and repair. Competitive Analysis Competitors: Yamaha YZF-R125, Honda CBR125R, Suzuki GSX-R125 (though model years may vary) Unique Selling Proposition: The Aprilia RS 125 is renowned for its exceptional handling, race-derived chassis, and potent two-stroke engine, offering a genuine supersport experience in a smaller displacement. Key Features Design Philosophy: Aggressive styling, aerodynamic efficiency, lightweight construction, performance-oriented ergonomics. Technical Highlights: Aluminum frame, sophisticated suspension, powerful two-stroke engine (for its class), racing heritage. 📋 Manual Details Coverage Areas Primary Coverage: Complete service and repair for Aprilia RS 125 (2001 Model) Engine Coverage: Engine assembly, disassembly, tuning, carburetor overhaul, cooling system Chassis Coverage: Frame, suspension (front forks, rear shock), steering, wheels, tires Electrical Coverage: Wiring diagrams, ignition system, lighting, battery, starter, charging system Brake Coverage: Hydraulic system, caliper overhaul, disc replacement, pad servicing Bodywork Coverage: Fairings, seat, fuel tank, removal and installation procedures Page Count Estimated Pages: 300+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Clutch, Exhaust System Chassis: Frame, Front Suspension (Telescopic Forks), Rear Suspension (Monoshock Swingarm), Steering System, Wheels, Tires Braking: Front and Rear Hydraulic Disc Brakes, Master Cylinders, Calipers, Lines Electrical: Ignition System (CDI), Lighting System (Headlight, Taillight, Indicators), Battery, Charging System (Alternator), Starter Motor, Instrumentation Fuel And Emission: Carburetor (Dell'Orto PHBH 28 or similar), Fuel Tank, Fuel Lines, Fuel Filter, Oil Injection System Procedures Included Maintenance: Routine checks, lubrication points, oil changes, filter replacements, spark plug servicing, chain adjustment Repair: Engine rebuild (top end and bottom end), carburetor tuning and overhaul, suspension fork rebuild, brake caliper servicing, electrical component testing and replacement Troubleshooting: Diagnostic flowcharts for common problems, electrical fault finding, engine performance issues Diagnostics: Component testing procedures, setting specifications, fault codes (if applicable to the era) Assembly Disassembly: Step-by-step guides for complete component removal and reinstallation Technical Depth Depth: Comprehensive; covers basic maintenance to full engine rebuilds and advanced troubleshooting. Diagnostic Level: Detailed diagnostic procedures for electrical and mechanical systems. Rebuild Guidance: Includes specifications for critical engine components like piston ring gaps, bearing clearances, and valve timing. Torque Specs: Provides torque specifications for all critical fasteners. Wiring Diagrams: Detailed and accurate wiring diagrams for all electrical systems. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Searchability: Text-searchable for quick information retrieval. Resolution: High-resolution images and diagrams. Print Quality Usability: Printable for workshop use. Binding Type Binding Type For Print: N/A (Digital Download) Paper Type Paper Type For Print: N/A (Digital Download) Completeness Completeness: Full factory service manual, not a condensed or abridged version. ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, single-cylinder, liquid-cooled Displacement: 124.8 cc (7.6 cu in) Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 12.5:1 Valvetrain: Reed valve induction, Aprilia Power Exhaust (APE) system Performance Horsepower: Approx. 30-33 HP (varies by region/tuning) Torque: Approx. 20-22 Nm Fuel System Carburetor: Dell'Orto PHBH 28 (or similar 28mm flat slide carb) Fuel Type: Unleaded gasoline, minimum 95 RON Fuel Delivery: Gravity feed with integral oil injection system for 2-stroke oil Lubrication 2-Stroke Oil Type: High-quality 2-stroke synthetic oil (specific Aprilia recommendation available in manual) Cooling Cooling System: Liquid-cooled Coolant Type: Ethylene glycol-based antifreeze coolant (50% mixture with distilled water) 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Clutch Type: Wet, multi-plate, cable-actuated Features Gear Ratios: Detailed gear ratios provided in the manual for each gear. Final Drive: Chain drive, 520 pitch 📐 Dimensions Exterior Length: Approx. 1990 mm (78.3 in) Width: Approx. 730 mm (28.7 in) at handlebars Height: Approx. 1135 mm (44.7 in) at seat Wheelbase: Approx. 1375 mm (54.1 in) Ground Clearance: Approx. 140 mm (5.5 in) Weights Dry Weight: Approx. 131 kg (288.8 lbs) Wet Weight: Approx. 147 kg (324 lbs) (fully fueled) Max Load Capacity: Refer to manual for specific GVWR 🛡️ Safety Features Ratings Safety Standards: Compliant with European Roadworthiness Standards for its class. Active Features Braking System: Powerful front and rear disc brakes (e.g., 320mm front, 240mm rear, specifications confirmed in manual) Suspension: Performance-oriented adjustable front forks and rear monoshock for precise control. Passive Features Lighting: Halogen headlight, LED taillight, amber turn signals. Chassis Design: Sturdy perimeter frame designed for high-speed stability and agile handling. 💡 Technology Features Infotainment Instrumentation: Analog tachometer, digital speedometer, odometer, trip meter, coolant temperature warning light, neutral indicator. Driver Assistance ABS: Not equipped on the 2001 model. Connectivity Connectivity Features: N/A (pre-smartphone era) 🔧 Maintenance Service Intervals Oil Change Engine: Refer to manual for specific 2-stroke oil injection system and gearbox oil...