🏷️ Basic Information Identification Make: Aprilia Model: SR 50 Codes Product Id: APR-SR50-9212-FSM-PDF 👋 Introduction Market Position Segment: High-performance 50cc scooter, popular in European markets for urban commuting and sport-oriented riding. Competitive Analysis Competitors: Competed with other premium 50cc scooters like the Piaggio Zip SP, Yamaha BW'S/Slider, Gilera Runner 50, and Malaguti F15 Firebird. Key Features Performance Orientation: Known for its sporty handling, aggressive styling, and potent engine performance within its class, often favored by younger riders and tuning enthusiasts. Design Heritage: Embodied Aprilia's heritage in performance motorcycles, translating a sporty ethos into the scooter segment. 📋 Manual Details Coverage Areas Model Years: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Page Count Estimated Pages: 500+ Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, disassembly, assembly, tuning, carburetor, fuel injection (if applicable), cooling system, lubrication. Transmission: Automatic transmission (CVT), gear reduction, maintenance, repair, fluid specifications. Chassis: Frame, suspension (front fork, rear shock absorber), steering, wheels, tires. Brakes: Front and rear brake systems (disc/drum configurations depending on sub-model), hydraulic system, bleeding, pad replacement, caliper service. Electrical: Ignition system, lighting, charging system (stator, regulator/rectifier), starter motor, battery, wiring diagrams, switches, indicators. Bodywork: Fairings, panels, seat, storage, body trim, mounting hardware. Procedures Included Maintenance: Routine maintenance schedules, oil changes, filter replacements, spark plug service, lubrication points, tire pressure checks, brake adjustments. Troubleshooting: Diagnostic charts for common problems, symptom-based troubleshooting, electrical fault finding. Repair: Step-by-step repair instructions for all major components and systems, component replacement, assembly and disassembly procedures. Technical Data: Torque specifications, clearances, measurements, electrical values, diagnostic trouble codes (DTCs). Technical Depth Depth: Comprehensive, covering everything from basic pre-ride checks and routine maintenance to complex engine rebuilds and electrical diagnostics. Suitable for both DIY enthusiasts and professional technicians. 📊 Manual Specifications File Format PDF Quality: High-resolution, searchable PDF with clear text and legible diagrams. Printable. Print Quality Printability: Designed for easy printing of individual pages or sections. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, liquid-cooled (most common variants), single-cylinder. Engine Displacement: Approximately 49.4 cc (exact figures may vary slightly by sub-model and market). Bore X Stroke: Typically around 39.0 x 41.4 mm. Performance Horsepower: Factory figures typically ranged from 5.5 to 7.5 HP (approximate, depending on year and tuning). Torque: Torque figures are generally modest, optimized for acceleration in the lower RPM range. Fuel System Carburetor: Primarily equipped with Dell'Orto carburetors (e.g., PHVA 17.5mm or similar), with specific jetting and tuning depending on year and emissions regulations. Fuel Type: Unleaded gasoline (minimum 95 octane recommended). Engine Components Ignition System: Electronic CDI ignition. Cooling System: Liquid cooling system with radiator and fan. Lubrication: Automatic oil injection system. 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) with dry centrifugal clutch. Optional Gear Ratios: CVT provides continuously variable gear ratios for optimal power delivery across the speed range. Features Final Drive: Geared final drive. Clutch Type: Dry centrifugal clutch. 📐 Dimensions Exterior Length: Approximately 1700-1800 mm (varies by generation and specific model). Width: Approximately 700-750 mm (varies by generation and specific model). Height: Approximately 1100-1150 mm (varies by generation and specific model). Weights Dry Weight: Typically in the range of 95-105 kg (unladen). Max Load: Recommended maximum load capacity around 150 kg (rider and cargo). Wheels Tires Front Tire Size: Typically 130/60-13. Rear Tire Size: Typically 130/60-13. Wheel Type: Alloy wheels. 🛡️ Safety Features Ratings Crash Safety: As a scooter, formal crash ratings are typically not provided in the same manner as automobiles. Focus is on rider protection through design and braking performance. Active Features Brakes: Disc brakes front and rear on most models for effective stopping power. Anti-lock Braking System (ABS) was an optional or later standard feature on some variants. Lighting: Halogen headlights, LED tail lights (on later models), turn signals for visibility. Passive Features Frame Design: Steel underbone frame providing structural integrity. Ergonomics: Designed for comfortable rider posture and control. 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer, tachometer, fuel gauge, odometer, trip meter, and indicator lights (turn signals, high beam, oil level, engine warning). Driver Assistance ABS: Optional or standard on later models, providing enhanced braking safety. Connectivity N A: No advanced electronic connectivity features such as Bluetooth or smartphone integration are present in models from this era. 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000-5,000 km or annually, depending on usage. (Refer to specific manual chapter for exact interval and type). Spark Plug Replacement: Typically every 6,000-10,000 km, or as recommended by the manufacturer for specific plug types (e.g., NGK). Air Filter Cleaning Replacement: Check/clean every 3,000-5,000 km, replace as needed. Transmission Oil Change: Every 10,000-12,000 km...