🏷️ Basic Information Identification Make: Aprilia Model: SR50 Year: 1995 Sub Model: SR 50 Codes Engine Code Family: Minarelli Chassis Code Family: AM6 / Piaggio 👋 Introduction Market Position Segment: Performance Scooter Target Audience: Enthusiasts and owners seeking in-depth technical knowledge for maintenance and repair. Competitive Analysis Key Competitors 1995: Gilera Runner 50, Piaggio Zip SP, Yamaha Jog RR, MBK Nitro Key Features Model Highlights: Sporty design, liquid-cooled engine, advanced chassis for its class, agile handling. Manual Value Proposition: Provides comprehensive, professional-grade repair and maintenance guidance, essential for preserving the performance and longevity of the SR50. 📋 Manual Details Coverage Areas Main Coverage: All Models/Engines/Trim/Transmission Page Count Estimated Pages: 300-400 Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine System: Complete engine overhaul, tuning, diagnostics, internal components, cooling system, lubrication system. Fuel System: Carburetor adjustment and overhaul, fuel pump, fuel lines, fuel tank maintenance. Transmission System: Automatic transmission (CVT) operation, belt replacement, clutch service, gear oil. Electrical System: Wiring diagrams, lighting, ignition system, battery, starter, charging system, fuses, diagnostic codes. Braking System: Brake pad replacement, caliper service, brake fluid replacement, hydraulic system diagnostics. Suspension System: Front fork service and overhaul, rear shock absorber replacement, bearing maintenance. Steering System: Handlebar assembly, steering head bearings, linkage service. Cooling System: Radiator service, coolant replacement, water pump diagnostics. Bodywork And Frame: Panel removal and installation, seat maintenance, frame inspection, fairings. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug service, belt inspection/replacement. Troubleshooting: Step-by-step diagnostic guides for common and uncommon issues, error code interpretation. Repair: Detailed instructions for component removal, installation, and adjustment for all major systems. Overhaul: Complete engine, transmission, and suspension component overhaul procedures. Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values. Technical Depth Depth: Comprehensive, suitable for professional technicians and experienced DIY enthusiasts. 📊 Manual Specifications File Format File Type: PDF Searchable Text: Yes Print Quality Printability: High-quality, printable pages Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, single-cylinder, liquid-cooled Displacement: 49.3 cc (typical for Minarelli based engines) Bore X Stroke: 39.3 mm x 43.6 mm (typical) Compression Ratio: Approx. 7.2:1 (typical) Ignition System: Electronic CDI Lubrication: Automatic oil injection system Performance Horsepower: Approx. 6.5 - 7.5 HP @ 7000 RPM (stock) Torque: Approx. 6.0 - 7.0 Nm @ 6500 RPM (stock) Fuel System Carburetor Model: Dell'Orto PHBN 12 (common fitment) Fuel Type: Unleaded gasoline (95 RON recommended) Fuel Tank Capacity: Approx. 7.0 Liters 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) Drive System: V-belt drive to rear wheel Optional Optional Gearbox: N/A (CVT is standard) Features Clutch Type: Centrifugal automatic clutch Gear Reduction: Primary and secondary reduction gears Transmission Fluid Type: Specific CVT oil (refer to manual for exact grade, e.g., SAE 80W-90 or specialized CVT fluid) 📐 Dimensions Exterior Length: Approx. 1780 mm Width: Approx. 700 mm Height: Approx. 1120 mm Wheelbase: Approx. 1270 mm Weights Dry Weight: Approx. 95 - 105 kg Gross Vehicle Weight Rating: Approx. 270 kg 🛡️ Safety Features Ratings Crash Test Ratings: N/A (Scooter, not subject to automotive crash standards) Active Features Braking System: Front: Disc brake, Rear: Drum brake (or Disc on some variants) Lighting: Halogen headlight, LED taillight, turn signals Passive Features Frame Construction: Steel frame (e.g., 'double cradle' type) Tires: Tubeless tires (e.g., 120/70-13 front, 130/60-13 rear) 💡 Technology Features Infotainment Dashboard: Analog speedometer, tachometer, fuel gauge, indicator lights. Driver Assistance ABS: Not typically equipped on the 1995 model. Connectivity Bluetooth Usb: Not applicable for this model year. 🔧 Maintenance Service Intervals Engine Oil Change: Every 2,000 - 3,000 km or annually (using appropriate 2-stroke oil) Gear Oil Change: Every 5,000 - 6,000 km or every 2 years Spark Plug Replacement: Every 5,000 - 8,000 km or as needed Cvt Belt Inspection: Inspect every 4,000 km, replace as needed (typically 8,000 - 12,000 km) Fluid Specifications Engine Oil Type: High-quality 2-stroke synthetic or semi-synthetic oil (JASO FD or higher recommended) Gearbox Oil Spec: SAE 80W-90 API GL-4 or specified gear oil (consult manual) Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors (50/50 mix with distilled water) Brake Fluid Type: DOT 4 Known Issues Common Problems: Carburetor jetting sensitivity to altitude/temperature, wear on CVT components (belt, rollers), aging electrical connectors, steering head bearing play. Performance Enhancement Tips: Proper tuning of carburetor, ensuring correct variator rollers and clutch springs for optimal power delivery. 📚 Vehicle History Brand Heritage Aprilia Legacy: Italian manufacturer with a strong heritage in racing and performance motorcycles. Model Evolution Sr50 Generation: The SR50 was a pioneering model in the sport scooter segment, known for its performance and handling. Production Production Era: Introduced in the early 1990s, with significant updates throughout its lifecycle. Manufacturing Location: Italy 🏆 Awards & Recognition Recognitions Model...