🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 1996 Codes Product Code: Not specified in product data 👋 Introduction Market Position Segment: Sportbike, Lightweight Supersport Target Audience: Young riders seeking performance and aggressive styling, often used in track days and entry-level racing. Competitive Analysis Key Competitors Era: Yamaha YZF-R125 (later models), Honda CBR125R (later models), Suzuki GSX-R125 (later models), Cagiva Mito 125. Key Features Design Philosophy: Inspired by Aprilia's larger RS series superbikes, featuring aggressive styling, aerodynamic fairings, and a focus on rider engagement. Engine Type: High-performance 2-stroke, liquid-cooled, offering a strong power-to-weight ratio for its class. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive repair and service information primarily for professional technicians, but with adequate data for advanced enthusiasts. Page Count Page Count: Not specified in product data (PDF indicates extensive coverage) Manual Type Manual Type: Repair Service Manual Language Language: English (assumed based on product description) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: 2-stroke Rotax 122 engine, cylinder, piston, crankshaft, lubrication, cooling, ignition system (CDI), exhaust system. Fuel System: Carburetor (Dell'Orto PHBH 28 AS/BS), fuel pump, fuel tank, fuel lines, airbox. Transmission Drivetrain: 6-speed gearbox, clutch assembly, chain drive, final drive sprocket, gearbox lubrication. Chassis Frame: Aluminum alloy twin-spar frame, subframe, swingarm, rear suspension linkage. Suspension Front: Upside-down (USD) telescopic forks (e.g., Marzocchi or Paioli), internal damping, spring preload adjustment. Suspension Rear: Monoshock rear suspension with adjustable preload and rebound damping, linkage system. Brakes Front: Hydraulic disc brake, caliper type (e.g., Brembo 4-piston), rotor specifications, brake fluid type and bleeding procedures. Brakes Rear: Hydraulic disc brake, caliper type (e.g., Brembo 2-piston), rotor specifications, brake fluid type and bleeding procedures. Electrical System: 12V system, battery, stator, regulator/rectifier, wiring diagrams, lighting, horn, starter motor, electronic control unit (ECU). Bodywork Fairings: Front fairing, side panels, seat, tail section, fuel tank cover, mounting points, removal/installation. Procedures Included Routine Maintenance: Oil change intervals, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake pad inspection. Troubleshooting: Diagnostic procedures for common issues, fault finding for electrical and mechanical problems, error codes (if applicable). Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures, including piston ring gap, cylinder bore, and bearing clearances. Suspension Forks: Fork oil change, seal replacement, damping adjustment, and fork leg disassembly/reassembly. Rear Shock Service: Shock absorber inspection, seal replacement, and linkage bearing maintenance. Brake System Service: Brake bleeding, caliper overhaul, master cylinder inspection, pad and rotor replacement. Carburetor Adjustment: Idle speed adjustment, jetting recommendations, float level setting, and carburetor cleaning. Electrical Diagnostics: Testing of ignition components, charging system analysis, and troubleshooting of lighting and starter circuits. Technical Depth Depth Level: In-depth diagnostic and repair procedures suitable for professional mechanics, including torque specifications, tolerances, and detailed component breakdowns. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Digital PDF, allowing for clear viewing and printing of diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Rotax 122, 2-stroke, single-cylinder Displacement: 124.8 cc (7.62 cu in) Bore X Stroke: 54 mm x 54.5 mm (2.13 in x 2.15 in) Compression Ratio: Approximately 12.5:1 (varies slightly by market) Cooling System: Liquid-cooled Power Delivery: Known for its aggressive powerband, typical of 2-stroke engines, requiring higher RPM for peak performance. Performance Horsepower Approx: Around 30-34 HP (at crankshaft, varies by market and restrictions) Torque Approx: Around 20-22 Nm (at crankshaft) Fuel System Carburetor Model: Dell'Orto PHBH 28 AS or BS Fuel Type: Unleaded gasoline (RON 95 or higher recommended), with 2-stroke oil pre-mix or Autolube system. Autolube System: Separate oil injection system for 2-stroke lubrication (requires specific 2T oil). 🔧 Transmission Standard Gearbox Type: 6-speed constant mesh sequential gearbox Clutch Type: Wet multi-plate clutch, hydraulically operated Features Gear Ratios: Specific gear ratios detailed within the manual, critical for performance tuning and maintenance. Final Drive: Chain drive (e.g., 16T front sprocket, 47T rear sprocket common) Gearbox Oil: Specific API GL-4 or GL-5 gear oil, capacity detailed in manual. 📐 Dimensions Exterior Length Approx: 2000 mm (approx. 78.7 in) Width Approx: 700 mm (approx. 27.6 in) Height Approx: 1100 mm (approx. 43.3 in) Weights Dry Weight Approx: 140-145 kg (approx. 309-320 lbs) Wet Weight Approx: 155-160 kg (approx. 342-353 lbs) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycles are not typically crash-tested by organizations like NHTSA/Euro NCAP. Safety relies on design and rider skill). Active Features Braking System: Dual disc brakes (front and rear) with hydraulic actuation for strong stopping power. Suspension Design: Performance-oriented USD front forks and adjustable monoshock rear suspension contribute to stable handling. Passive Features Chassis Construction: Sturdy aluminum alloy frame provides rigidity and rider confidence. Lighting: Halogen headlights for good visibility, LED taillight (on some later variants/upgrades). 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer, speedometer, odometer, coolant...