🏷️ Basic Information Identification Make: Aprilia Model: SR50 Factory Year: 2006 Codes Engine Code: Piaggio LEA8W (Liquid-Cooled, 2-Stroke) Chassis Code: RP1A1 👋 Introduction Market Position Market Niche: Performance-oriented 50cc scooter, targeting younger riders and urban commuters seeking a sporty and stylish option. Competitive Analysis Competitors: Competes with other premium 50cc scooters such as the Yamaha Aerox, Gilera Runner, and Kymco Super 8. Key Features Performance Orientation: Designed for agility and spirited riding, often featuring upgraded components from the factory. Design Aesthetic: Sportbike-inspired styling with aggressive lines and often premium finishes. Manual Value Value Proposition: Provides essential technical data for owners and technicians to maintain, repair, and optimize the performance of the Aprilia SR50 Factory. 📋 Manual Details Coverage Areas Coverage Type: Complete Factory Service Repair Manual Page Count Page Count: Hundreds of Pages (Exact count not specified but implied to be extensive) Manual Type Manual Type: Factory Service Repair Manual Language Language: English (Implied by typical sales of such manuals) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, and reassembly procedures for the Piaggio LEA8W 2-stroke engine. Fuel System: Carburetor adjustment and troubleshooting (likely a Dell'Orto PHVA series), fuel pump, fuel lines, and fuel tank maintenance. Ignition System: CDI unit, spark plug specifications, ignition timing checks, and troubleshooting. Cooling System: Radiator, coolant, water pump, hoses, and fan operation for the liquid-cooled engine. Transmission And Drivetrain: Automatic CVT (Continuously Variable Transmission) system, including clutch, variator, drive belt, and torque converter maintenance and replacement. Brakes: Front and rear brake system components, hydraulic lines, brake fluid specifications, caliper maintenance, and bleeding procedures. Suspension: Front telescopic fork (likely Showa or Marzocchi) and rear monoshock absorber servicing, including oil change and seal replacement. Electrical System: Wiring diagrams, battery specifications, charging system (stator and regulator/rectifier), starter motor, lighting, and instrument panel operation. Chassis And Bodywork: Frame inspection, body panel removal and installation, seat, handlebars, and fairings. Wheels And Tires: Tire size specifications, wheel bearing maintenance, and tire pressure recommendations. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, brake fluid flushes, and general inspection procedures. Troubleshooting Diagnostics: Detailed symptom-based troubleshooting guides for common operational issues, including starting problems, poor performance, and electrical faults. Repair And Rebuild: Step-by-step instructions for component removal, repair, and reinstallation for all major mechanical and electrical systems. Specifications Data: Torque specifications for all fasteners, fluid capacities, clearances, and wear limits for various components. Technical Depth Depth Level: Comprehensive, covering basic maintenance to complete engine and transmission overhauls, including electrical system diagnostics. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, suitable for professional printing with clear diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Searchable Text: Yes (Optimized for text search within the PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, single-cylinder Displacement: 49.4 cc Bore X Stroke: 39.0 mm x 41.4 mm Compression Ratio: Approx. 7.1:1 Performance Horsepower: Approx. 6.5 - 7.0 HP @ 7000 RPM (Varies slightly by market regulations) Torque: Approx. 7.0 Nm @ 6500 RPM Fuel System Carburetor: Dell'Orto PHVA 17.5 ED (or similar, specified in manual) Fuel Type: Unleaded Gasoline (minimum 95 RON) Lubrication Oil System: Automatic oil injection system. Oil Type: 2-stroke synthetic scooter oil (e.g., Piaggio Lube, Motul 7100 2T) 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) Features Drive Belt: Specific drive belt dimensions and tensioning procedures are detailed in the manual. Clutch: Centrifugal automatic clutch, with adjustment and replacement guides. Final Drive: Geared final drive with specific oil type and change intervals detailed. 📐 Dimensions Exterior Length: Approx. 1,870 mm (73.6 in) Width: Approx. 740 mm (29.1 in) Height: Approx. 1,160 mm (45.7 in) Weights Dry Weight: Approx. 106 kg (233.7 lbs) Gross Vehicle Weight Rating: Refer to vehicle VIN plate for exact rating. Cargo Underseat Storage: Sufficient for a full-face helmet (model dependent). 🛡️ Safety Features Ratings Safety Certification: CE Certified (European Standards) Active Features Braking System: Hydraulic disc brakes front and rear for enhanced stopping power. Tires: Tubeless, high-performance tires for improved grip and stability. Passive Features Lighting: Halogen headlamp and taillight for visibility. 💡 Technology Features Infotainment Instrument Panel: Digital and analog instrument cluster with speedometer, tachometer, fuel gauge, and warning lights. Driver Assistance ABS: ABS was not typically standard on the 2006 SR50 Factory, but some optional variants may have existed. The manual would detail its operation if equipped. Connectivity Diagnostic Ports: Likely includes diagnostic connectors for electronic troubleshooting, detailed in the electrical section. 🔧 Maintenance Service Intervals Engine Oil Change: Recommended every 3,000 - 5,000 km or annually, refer to manual for exact interval and type. Gearbox Oil Change: Recommended every 6,000 - 10,000 km or bi-annually, refer to manual for specific grade. Air Filter Cleaning: Recommended every 3,000 km or...