🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Model Year: 2002 Product Type: Workshop Service Repair Manual 👋 Introduction Market Position Motorcycle Segment: Lightweight sportbike, popular among younger riders and for track day use due to its performance and handling characteristics. Competitive Analysis Competitors 2002: Yamaha YZF-R125 (later models), Honda CBR125R, Suzuki GSX-R125, Kawasaki Ninja 125. Key Features Aprilia Rs125 Reputation: Renowned for its sharp styling, aggressive riding posture, potent two-stroke engine (in many variants), and excellent chassis dynamics, often considered a 'baby superbike'. Manual Value Proposition Diy Support: Empowers owners to perform their own maintenance and repairs, saving on labor costs and fostering a deeper understanding of the machine. 📋 Manual Details Coverage Areas Manual Coverage Scope: Comprehensive factory service and repair procedures for the 2002 Aprilia RS 125. Page Count Estimated Page Count: Likely 300-500+ pages based on typical factory service manuals for this class of motorcycle. Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Digital Format: PDF (Portable Document Format) 📖 Manual Coverage Systems Covered Engine Systems: Engine assembly/disassembly, cylinder head, piston, crankshaft, lubrication, cooling (if applicable), ignition system, fuel injection/carburetion system, exhaust system. Transmission And Drivetrain: Gearbox assembly/disassembly, clutch operation and service, final drive (chain and sprockets). Chassis And Suspension: Front fork (telescopic, upside-down), rear shock absorber, swingarm, frame, steering system, wheel bearings. Braking System: Front and rear brake calipers, master cylinders, brake lines, brake fluid, disc servicing. Electrical System: Wiring diagrams, battery, starter motor, alternator/stator, lighting system (headlight, taillight, indicators), instrumentation, ignition coils, ECUs. Fuel System: Fuel tank, fuel lines, fuel pump (if applicable), carburetor(s) or fuel injector(s), throttle control. Bodywork And Trim: Fairings, seat, fuel tank cover, fenders, levers, footpegs, mirrors. Procedures Included Maintenance Procedures: Routine maintenance checks, oil changes, filter replacements, chain adjustment, brake pad inspection, coolant checks (if liquid-cooled), spark plug replacement, air filter cleaning/replacement. Repair Procedures: Complete engine rebuilds, gearbox overhauls, suspension fork servicing, brake system repairs, electrical component replacement, bodywork panel repairs and installation. Troubleshooting Guides: Diagnostic procedures for common issues, symptom-based troubleshooting charts. Specifications And Data: Torque values, clearances, fluid capacities, electrical resistance values, diagnostic trouble codes (DTCs). Special Tools: Identification and use of specialized tools required for specific repair operations. Technical Depth Depth Of Information: Highly detailed, covering complete disassembly and reassembly of all major components, suitable for both DIY enthusiasts and professional mechanics. 📊 Manual Specifications File Format PDF Features: Searchable text, high-resolution images, layered content for clarity, printable pages. Print Quality Image Quality: Hundreds of photos and illustrations with detailed, clear diagrams. Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder (common for RS125, though some later Rotax 125 engines were liquid-cooled). Displacement: 124.8 cc (approx.) Bore X Stroke: 54 mm x 54.5 mm (typical for Rotax 123/122 engines). Cooling System: Liquid-cooled (Radiator and fan). Valvetrain: Reed valve induction, Rotary disc valve (on crankshaft), Power valve system (e.g., RSV). Performance Horsepower Output: Approximately 30-34 HP (depending on market restrictions and specific engine tune). Torque Output: Approximately 2.0-2.2 kgf-m (14.5-16.0 lb-ft) at 7,000-8,000 RPM. Fuel System Carburetor Type: Dell'Orto VHST 28 or similar performance carburetor. Fuel Grade Recommendation: Premium Unleaded Gasoline (95 RON or higher). Oil Mixing Ratio: Typically 1:20 to 1:30 (premix or oil injection system) with high-quality 2-stroke synthetic oil. 🔧 Transmission Standard Transmission Type: 6-speed sequential manual transmission. Features Clutch Type: Wet multi-plate clutch. Final Drive: Chain drive. Gear Ratios: Specific ratios would be detailed in the manual, critical for performance tuning. 📐 Dimensions Exterior Overall Length: Approx. 1990 mm (78.3 in) Overall Width: Approx. 720 mm (28.3 in) Seat Height: Approx. 810 mm (31.9 in) Weights Dry Weight: Approx. 130 kg (286 lbs) Fuel Tank Capacity: Approx. 7.8 liters (2.06 US gal) 🛡️ Safety Features Ratings Safety Certification: Meets relevant emissions and safety standards for its intended market (e.g., Euro 2). Active Features Braking System Type: Dual disc front brake (e.g., 320mm diameter), Single disc rear brake (e.g., 220mm diameter), hydraulic actuation. Suspension System: Upside-down (USD) telescopic front forks, Monoshock rear suspension with adjustable preload and damping. Passive Features Lighting: Halogen headlight, LED taillight, standard turn signals. 💡 Technology Features Infotainment Instrumentation: Analog tachometer, digital speedometer, odometer, trip meter, coolant temperature gauge, indicator lights. Driver Assistance ABS: Not typically equipped on the 2002 model year RS 125. Available on later models. Connectivity Diagnostic Ports: May feature basic diagnostic connectors for engine management systems, though advanced ECU diagnostics are less common on this era of 125cc sportbikes. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 km (1,800-3,000 miles) or annually, depending on usage and oil type. Critical for 2-stroke longevity. Spark Plug Replacement: Every 5,000-10,000 km (3,000-6,000 miles), depending on plug type and usage. Manual will specify recommended spark plug...