🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 1995 Codes Chassis Code: Rotax 122 👋 Introduction Market Position Segment: Lightweight sportbike / Supersport Target Audience: Enthusiasts and owners seeking to perform their own maintenance and repairs on the Aprilia RS 125. Competitive Analysis Competitors 1995: Honda CBR250RR, Yamaha YZF-R250, Kawasaki ZXR250, Suzuki GSX-R250. Key Features Vehicle Appeal: Known for its sharp styling, potent two-stroke engine, and race-derived chassis, offering a true supersport experience in the 125cc class. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair for the Aprilia RS 125 (1995 model year). Page Count Estimated Pages: 300-400 Manual Type Type: Service & Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine disassembly, assembly, tuning, lubrication, cooling system, carburetor tuning, power valve operation. Fuel System: Fuel tank, fuel pump, fuel lines, carburetor (Dell'Orto PHBH 28 AS), fuel filter replacement. Exhaust System: Expansion chamber, silencer inspection and maintenance. Transmission Drivetrain: Clutch operation, gearbox maintenance, chain adjustment, sprocket replacement. Chassis Frame: Frame inspection, steering head bearing service, suspension adjustment and overhaul (front forks, rear shock absorber). Braking System: Front and rear brake caliper service, brake fluid replacement, master cylinder overhaul, brake pad and disc inspection/replacement. Electrical System: Ignition system, lighting circuits, battery maintenance, starter motor, charging system, wiring diagrams. Bodywork Fairings: Fairing removal and installation, seat, tank, and body panel repair and replacement. Procedures Included Maintenance: Routine checks, oil changes, filter replacements, spark plug replacement, chain lubrication and adjustment. Troubleshooting: Diagnostic procedures for common starting issues, running problems, electrical faults, and performance degradation. Repair: Detailed step-by-step instructions for component repair and replacement across all major systems. Diagnostics: Fault finding charts and procedures for identifying the root cause of mechanical and electrical issues. Technical Depth Depth: Covers everything from basic scheduled maintenance to complete engine rebuilds and complex electrical diagnostics. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval. Printability: Printable pages for workshop use. Image Quality: High-resolution diagrams and photographs. ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder Displacement: 124.8 cc Bore X Stroke: 54 mm x 54.5 mm Cooling System: Liquid-cooled Ignition System: Electronic ignition (CDI) Power Valve: Rotax Electronic Power Valve (APV) system Performance Horsepower Est: Approx. 30-35 HP (varies by market and tuning) Torque Est: Approx. 20-23 Nm Fuel System Carburetor: Dell'Orto PHBH 28 AS Fuel Type: Unleaded gasoline, minimum 95 RON Lubrication Oil Mixing: Pre-mix or automatic oil injection (separate reservoir) 🔧 Transmission Standard Transmission Type: 6-speed manual transmission Features Clutch Type: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length Est: Approx. 1950 mm Width Est: Approx. 740 mm Height Est: Approx. 1100 mm Weights Dry Weight Est: Approx. 130 kg Fuel Tank Capacity: 13 Liters (including reserve) 🛡️ Safety Features Ratings Safety Standards: European safety standards applicable for motorcycles of this era. Active Features Braking Performance: Dual-piston front caliper with 320mm disc, single-piston rear caliper with 220mm disc. Passive Features Frame Construction: Aluminum perimeter frame for rigidity and light weight. 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer, speedometer, odometer, trip meter, and indicator lights. Features a temperature gauge. Driver Assistance Electronic Aids: Limited to the electronic power valve system; no modern electronic rider aids like ABS or traction control. Connectivity Connectivity Features: N/A (classic motorcycle design) 🔧 Maintenance Service Intervals Oil Change: Refer to manual for specific intervals, typically every 3,000-5,000 km or annually. Spark Plug Check: Check every 3,000 km, replace as needed based on condition. Air Filter Cleaning: Clean every 3,000 km, replace if damaged. Chain Lubrication: Lubricate and adjust every 500-1000 km, depending on riding conditions. Fluid Specifications Coolant: Mixture of distilled water and ethylene glycol-based antifreeze (50/50 ratio recommended). Brake Fluid: DOT 4 brake fluid. Transmission Oil: Refer to manual for specific gearbox oil, typically a SAE 75W/90 or SAE 80W/90 API GL-4 gear oil. 2 Stroke Oil: High-quality synthetic 2-stroke oil for premix or injection systems, compatible with the engine manufacturer's specifications. Known Issues Power Valve Sticking: Carbon buildup can cause the power valve mechanism to stick, affecting engine performance. Regular cleaning is crucial. Carburetor Tuning: Sensitivity to altitude and temperature changes requires proper jetting and carburetor adjustment. Cylinder Wear: As a high-performance two-stroke, the cylinder and piston can experience wear over time, requiring timely replacement or re-boring. Electrical Connections: Corrosion or loose connections in the wiring harness can lead to intermittent electrical faults. 📚 Vehicle History Brand Heritage Manufacturer Origin: Aprilia is an Italian manufacturer with a strong heritage in motorcycle racing, particularly in the smaller displacement categories. Model Evolution Rs 125 Lineage: The RS 125 has been a flagship model for Aprilia in the 125cc class since the early 1990s, evolving through various iterations and engine updates. Production Production Period: The first generation RS 125...