🏷️ Basic Information Identification Make: Aprilia Model: RS 250 Year: 1999 Product Type: Full Service Repair Manual 👋 Introduction Market Position Market Segment: Lightweight Supersport / Track-focused sportbike Competitive Analysis Key Competitors: Yamaha YZF-R6, Honda CBR600F/RR, Suzuki GSX-R600, Kawasaki Ninja ZX-6R (though displacement difference is notable). Key Features Design Philosophy: Lightweight, agile, track-oriented performance derived from Aprilia's Grand Prix racing experience. Engine Type: High-revving 2-stroke V-twin engine, known for its distinctive powerband and sound. 📋 Manual Details Coverage Areas Systems Covered: Engine, Chassis, Electrical System, Bodywork, Suspension, Brakes, Fuel System, Cooling System, Lubrication, Transmission, Clutch, Exhaust System, Troubleshooting, Maintenance, Rebuild, Refurbishment, Restoration Page Count Page Count: Detailed (Specific count not provided in product information, but described as 'very detailed') Manual Type Manual Type: Service Repair Manual Manual Scope: Comprehensive service and repair manual covering all aspects of the vehicle's maintenance and repair. Language Language: English (Presumed, standard for most international service manuals) Format Format: Digital (Likely PDF, typical for online sales of older manuals) 📖 Manual Coverage Systems Covered Engine Overhaul: Complete disassembly, inspection, repair, and reassembly procedures for the 2-stroke V-twin engine. Fuel System Diagnostics: Carburetor tuning and troubleshooting, fuel line inspection, fuel pump operation (if applicable). Cooling System Maintenance: Coolant type, capacity, bleeding procedures, radiator and hose inspection. Electrical System Wiring: Detailed wiring diagrams, component testing, troubleshooting for ignition, lighting, and accessories. Brake System Service: Hydraulic system maintenance, caliper and master cylinder overhaul, pad replacement, fluid specifications. Suspension Adjustment: Front fork disassembly, oil type and level, rear shock adjustment and servicing. Transmission And Clutch Repair: Gearbox inspection, gear selection mechanism, clutch operation, hydraulic clutch system (if applicable). Chassis And Frame Inspection: Frame integrity checks, steering head bearing maintenance, swingarm and linkage servicing. Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, spark plug service, air filter cleaning. Troubleshooting Guide: Systematic diagnostic steps for common and uncommon performance issues. Rebuild Instructions: Step-by-step guidance for complete engine and component rebuilds. Restoration Tips: Guidance on sourcing parts and restoring the motorcycle to original specifications. Special Tool Requirements: Identification of necessary specialized tools for specific repair procedures. Bodywork And Fairing Removal: Detailed instructions for removing and reattaching body panels for access and repair. Wheel And Tire Service: Instructions for tire mounting/dismounting, wheel balancing, and spoke tensioning (if applicable). Exhaust System Maintenance: Inspection and maintenance of the expansion chambers and silencers, decarbonization of power valves. Technical Depth Depth Of Coverage: Comprehensive from basic maintenance to complete engine and chassis rebuilds. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High resolution, allowing for clear reproduction of diagrams and text. Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: 2-Stroke, Liquid-Cooled, 60-degree V-Twin Displacement: 249 cc (249.3 cc) Bore X Stroke: 51.5 mm x 60 mm Compression Ratio: 12.8:1 Valvetrain: Reed Valve Intake, Rotary Disc Valve Exhaust (per cylinder) Performance Horsepower: Approx. 70 HP @ 11,000 RPM (claimed) Torque: Approx. 39 Nm @ 10,000 RPM (claimed) Fuel System Carburetors: 2x 30mm Dell'Orto PHBE (or similar, depending on market) Fuel Type: Unleaded Premium (95 RON or higher recommended) Oil Mixing: Premixed fuel/oil or separate oil injection system (check specific model variant) 🔧 Transmission Standard Transmission Type: 6-Speed Sequential Manual Clutch Type: Wet Multi-plate Clutch (Hydraulically actuated) Features Gear Ratios: Specific ratios would be detailed in the manual, typically optimized for sporty performance. 📐 Dimensions Exterior Length: Approx. 1990 mm Width: Approx. 730 mm Height: Approx. 1100 mm Wheelbase: Approx. 1390 mm Weights Dry Weight: Approx. 145 kg Wet Weight: Approx. 167 kg (with fluids) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety ratings differ from cars and are not standardized in this manner.) Active Features Braking System: Dual 290mm front discs with 4-piston calipers, Single 220mm rear disc with 2-piston caliper. Suspension Features: Fully adjustable front forks (preload, compression, rebound), adjustable rear monoshock. Passive Features Frame Construction: Aluminum twin-spar frame for rigidity and light weight. Lighting: Dual Halogen Headlights, LED Tail Light 💡 Technology Features Infotainment Infotainment System: N/A (Basic analog instrumentation: speedometer, tachometer, temperature gauge, warning lights). Driver Assistance Electronic Aids: None (No ABS, traction control, or ride modes typical of modern motorcycles). Engine Management Ignition System: CDI (Capacitor Discharge Ignition) with electronic timing. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual; typically every 3,000-5,000 km or annually. Spark Plug Replacement: Refer to manual; typically every 6,000-10,000 km for performance plugs. Chain Lubrication: Every 500-1000 km and after riding in wet conditions. Fluid Specifications Engine Oil Type: Specific 2-stroke premix or injection oil recommended by Aprilia (e.g., Motul 7100 2T, Castrol Power 1 Racing 2T). Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors. Refer to manual for exact blend (e.g., 50/50 mix). Brake Fluid: DOT 4 or DOT 5.1 (check manual for specific recommendation). Fork...