🏷️ Basic Information Identification Make: Aprilia Model: SR50 Year: 2008 Variant: Factory Codes Chassis Code: GS (Generally denotes the SR50 model family, specific codes may apply to sub-variants) Engine Code: Piaggio Hi-PER 2 Pro (Commonly used for this generation) 👋 Introduction Market Position Segment: High-performance 50cc scooter Target Audience: Enthusiasts seeking performance and sporty handling in a compact scooter; owners requiring detailed repair information Competitive Analysis Key Competitors 2008: Yamaha Aerox 50, Gilera Runner 50, Peugeot Speedfight 2 Key Features Vehicle Performance Orientation: Known for its sporty chassis and potent (for its class) engine, often with liquid cooling and advanced suspension Design Aesthetics: Aggressive, 'supermotard' inspired styling Key Features Manual Utility: Essential for DIY maintenance, troubleshooting, and repairs, ensuring proper function and longevity Authenticity: Official factory documentation, providing manufacturer-approved procedures and specifications 📋 Manual Details Coverage Areas Coverage Scope: Complete factory service and repair Page Count Page Count: Hundreds of pages (specific number not provided, but indicates comprehensive content) Manual Type Manual Type: Factory Service Repair Manual Language Language: English (Assumed based on common product descriptions for this market) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Service: Full overhaul, inspection, disassembly, assembly, tuning, and troubleshooting Fuel System: Carburetor/Fuel Injection (depending on specific 2008 variant), fuel pump, fuel lines, fuel tank servicing Ignition System: CDI, spark plug, ignition coil, wiring diagrams Cooling System: Liquid cooling system components, radiator, water pump, thermostat, coolant specifications Transmission Drivetrain: CVT (Continuously Variable Transmission) operation, maintenance, clutch, drive belt, variator, torque driver, gearbox Brakes: Hydraulic brake system (front and rear), brake calipers, master cylinders, brake lines, brake pads, brake fluid specifications Suspension: Front telescopic fork, rear shock absorber, linkage, lubrication, and adjustment Steering: Handlebar assembly, steering head bearings, steering column maintenance Electrical System: Battery, lighting (headlight, taillight, indicators), starter motor, charging system, wiring diagrams, fuses Bodywork Chassis: Frame, fairings, body panels, seat, storage compartment, mounting hardware Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, drive belt inspection/replacement, brake fluid flushes, tire pressure checks Troubleshooting: Diagnostic procedures for common and uncommon issues across all systems Repair And Rebuild: Detailed steps for component disassembly, repair, and reassembly Electrical Diagnostics: Fault finding for lighting, ignition, and charging system faults using wiring diagrams Torque Specifications: Precise torque values for critical fasteners across all systems Wheel And Tire Service: Tire mounting/dismounting, wheel balancing, and rim specifications Alignment Steering: Steering head bearing adjustment and service Technical Depth Depth: Comprehensive, from basic adjustments to complete engine and transmission rebuilds Diagnostic Focus: Detailed diagnostic flowcharts and symptom-based troubleshooting guides Parts Information: Likely includes part numbers for common replacement items and exploded views 📊 Manual Specifications File Format File Type: PDF Searchable: Typically, factory PDF manuals are text-searchable Print Quality Print Readability: High-quality resolution for clear text and diagrams (assumed for factory manual) Binding Type Binding Type: N/A (Digital Download - PDF) Paper Type Paper Type: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder, liquid-cooled Displacement: Approximately 49cc (though the Hi-PER 2 Pro can vary slightly based on tuning or specific market configurations) Bore X Stroke: Commonly around 39.3 mm x 40.4 mm (for Piaggio 50cc 2-stroke Hi-PER 2) Power Output: Typically around 5-6 HP (at crank), though factory figures can vary by market regulations. Torque Output: Specific figures not readily available, but designed for brisk acceleration. Performance Top Speed: Restricted by law in many markets, but mechanically capable of higher speeds. Fuel System Carburetor Size: Often a Dell'Orto 17.5mm PHVA or similar, depending on factory setup. Fuel Type: Unleaded gasoline (RON 95 recommended) Oil Mixing: Automatic oil injection system (requires 2-stroke engine oil) Lubrication Engine Oil Type: API TC, JASO FD certified two-stroke engine oil (synthetic blend or full synthetic recommended) 🔧 Transmission Standard Type: Automatic CVT (Continuously Variable Transmission) Drive Belt: Specific belt dimensions and part numbers detailed in manual Variator Rollers: Weight and dimensions critical for performance tuning, covered in manual Torque Driver: Component responsible for engaging the drive belt under load Features Gearbox Oil Type: Specific SAE 80W-90 gear oil or equivalent (check manual for exact Aprilia specification) 📐 Dimensions Exterior Length: Approx. 1750 mm (varies slightly) Width: Approx. 740 mm Height: Approx. 1140 mm Weights Dry Weight: Approx. 106 kg Gross Vehicle Weight Rating: Specify approximate rider + cargo capacity Cargo Storage Compartment: Under-seat storage, typically fitting a small to medium helmet 🛡️ Safety Features Ratings Crash Test Information: Not applicable in the same way as cars; focus is on structural integrity and component safety features. Active Features Braking System: Front and rear disc brakes for responsive stopping power. Lighting: Halogen headlight, taillight, and LED indicators for visibility. Passive Features Frame Construction: High-tensile steel frame designed for rigidity and rider feedback. Tyre Specification: Front: 130/60-13, Rear: 140/60-13 (typical, verify with manual) 💡 Technology Features Infotainment Instrument Cluster: Analog...