🏷️ Basic Information Identification Make: Aprilia Model: SR 50 Year: 2006 Codes Model Code: A00000 👋 Introduction Market Position Segment: Sport Scooter Target Audience: Enthusiasts, DIY mechanics, and owners seeking to maintain and repair their Aprilia SR 50. Competitive Analysis Competitors 2006: Piaggio Zip SP, Gilera Runner, Yamaha Aerox, Malaguti F12. Key Features Performance Focus: The SR 50 is known for its sporty handling and performance-oriented design. 📋 Manual Details Coverage Areas Systems Covered: Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Transmission (CVT), Drive System, Chassis, Suspension (Front & Rear), Brakes (Front & Rear), Electrical System, Bodywork, Lubrication, Troubleshooting, Maintenance, Specifications, Wiring Diagrams Page Count Total Pages: Estimated 250-350 pages (typical for a comprehensive service manual of this era) Manual Type Type: Full Service Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Overhaul: Complete disassembly, inspection, repair, and reassembly of the engine. Fuel Delivery System: Carburetor tuning, cleaning, and replacement; fuel pump operation; fuel filter replacement. Ignition System Diagnostics: Spark plug specifications, ignition coil testing, CDI unit diagnosis, timing adjustments. Cooling System Service: Coolant type, capacity, bleeding procedures, radiator and fan checks. Transmission And Drivetrain: Continuously Variable Transmission (CVT) inspection, belt replacement, clutch adjustment, gear oil specifications. Electrical And Lighting: Battery maintenance, starter system troubleshooting, lighting system checks, fuse box layout, wiring harness diagrams. Braking System Repair: Brake pad replacement, caliper service, brake fluid type and bleeding procedures, disc inspection. Suspension And Steering: Front fork overhaul, rear shock absorber inspection, steering bearing maintenance. Bodywork And Trim: Panel removal and installation, seat removal, fairing repair. Procedures Included Scheduled Maintenance: Detailed breakdown of routine maintenance tasks and intervals. Troubleshooting Guides: Step-by-step diagnostic procedures for common and uncommon problems. Rebuilding Procedures: Comprehensive instructions for engine and component rebuilds. Adjustment Instructions: Carburetor, clutch, and throttle cable adjustments. Torque Specifications: Precise torque values for all critical fasteners. Technical Depth Depth Level: Comprehensive (from basic maintenance to complete engine rebuilds and advanced diagnostics) 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval Print Quality Print Readability: High-resolution graphics and clear text for easy printing Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, liquid-cooled Displacement: 49.4 cc Bore X Stroke: 39.0 mm x 41.4 mm Engine Manufacturer Variant: Likely a Piaggio Hi-PER 2 engine or similar variant common in Aprilia models. Performance Horsepower: Approximately 5-6.5 hp (depending on specific market regulations and tuning) Torque: Approx. 4-5 Nm Fuel System Carburetor Model: Dell'Orto PHVA 17.5 (common for this model and year) Fuel Type: Unleaded gasoline (min. 95 RON) Oil Mixture: Automatic oil injection system (requires 2-stroke specific oil) 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) Features Clutch Type: Centrifugal clutch Final Drive: Gear drive 📐 Dimensions Exterior Length: Approx. 1840 mm Width: Approx. 710 mm Height: Approx. 1140 mm Weights Dry Weight: Approx. 96 kg Fuel Tank Capacity: Approx. 7.0 Liters 🛡️ Safety Features Active Features Braking System Front: Hydraulic disc brake Braking System Rear: Hydraulic disc brake Passive Features Lighting: Halogen headlight, LED taillight, turn signals. 💡 Technology Features Infotainment Dashboard Features: Analog speedometer, odometer, fuel gauge, indicator lights (turn signals, high beam, oil level). Driver Assistance Lighting System: Halogen headlight for primary illumination, integrated turn signals. Connectivity Basic Controls: Handlebar-mounted controls for lights, horn, turn signals, and engine kill switch. 🔧 Maintenance Service Intervals Oil Change Engine: Every 3,000-5,000 km or annually. (Refer to manual for exact interval) Spark Plug Replacement: Every 5,000-7,000 km. Air Filter Cleaning Replacement: Clean every 3,000 km, replace as needed (typically 10,000 km). Belt Check Replacement Cvt: Inspect every 6,000 km, replace every 12,000-15,000 km or if worn. Fluid Specifications Engine Oil Type: High-quality 2-stroke synthetic or semi-synthetic oil meeting API TC or JASO FD specifications. Transmission Oil Type: API GL-3 or GL-4 gear oil (specific viscosity to be confirmed in manual, e.g., SAE 80W/90). Coolant Type: Ethylene glycol-based antifreeze/coolant with corrosion inhibitors (50% mix with distilled water). Brake Fluid Type: DOT 4 brake fluid. Known Issues Common Wear Items: Drive belt, spark plug, brake pads, carburetor jets. Potential Carburetor Issues: Clogging due to fuel deposits or water ingress, leading to hard starting or poor running. Electrical Diagnostics: Wiring harness issues, stator/regulator problems are less common but possible. 📚 Vehicle History Brand Heritage Brand Origin: Aprilia is an Italian manufacturer with a strong racing heritage, particularly in motorcycle racing. Model Evolution Sr50 Lineage: The SR 50 line has been a staple in Aprilia's scooter range, known for blending performance and sporty aesthetics. Production Production Era: The SR 50 has been in continuous production since the early 1990s, with significant updates over the years. 🏆 Awards & Recognition Recognitions Industry Standing: Aprilia SR 50 models are generally well-regarded for their sporty...