🏷️ Basic Information Identification Make: Aprilia Model: RS250 Model Variant: RS 250 Generation Generation Name: MK I Codes Chassis Code: AP05 👋 Introduction Market Position Market Segment: High-performance sport motorcycle, competing in the 250cc supersport class. Competitive Analysis Key Competitors: Honda CBR250RR, Kawasaki ZXR250, Yamaha FZR250R, Suzuki RGV250. Key Features Sportbike Heritage: Direct lineage from Aprilia's Grand Prix racing technology, specifically its 250cc V-twin GP bikes. Performance Focus: Lightweight chassis, powerful V-twin 2-stroke engine, sharp handling, and aggressive styling. Manual Utility: Essential for owners and mechanics to maintain and repair this specialized V-twin 2-stroke machine accurately. 📋 Manual Details Coverage Areas Applicable Years: 1994, 1995, 1996, 1997 Page Count Estimated Pages: Hundreds of pages (specific count not provided in product description, but indicative of comprehensive coverage) Manual Type Type: Factory Service Repair Manual Language Language: English (Standard for factory manuals of this era and origin, but confirmation is recommended) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Detailed coverage of the 2-stroke V-twin engine, including top end, bottom end, lubrication, cooling, and exhaust systems. Fuel System: Carburetor tuning and maintenance (likely Mikuni T25s), fuel delivery, petcock, and fuel tank. Transmission: Gearbox operation, clutch assembly, gear shift mechanism, and lubrication. Chassis: Frame inspection and repair, suspension (front forks and rear shock absorber), steering head bearings. Brakes: Front and rear brake systems, including caliper overhaul, master cylinders, brake lines, and bleeding procedures. Electrical System: Ignition system (CDI), lighting, battery, charging system, starter motor, and wiring diagrams. Bodywork: Fairing removal and installation, seat, fuel tank mounting, and other cosmetic components. Cooling System: Radiator, cooling fan, water pump, coolant flow, and capacity. Procedures Included Routine Maintenance: Oil changes, filter replacement, chain adjustment, spark plug replacement, air filter cleaning/replacement. Engine Rebuild: Piston replacement, cylinder honing, crankshaft service, seal and gasket replacement, engine assembly and disassembly. Troubleshooting: Diagnostic procedures for common starting, running, and performance issues. Fault finding charts. Suspension Service: Front fork oil changes and seal replacement, rear shock absorber maintenance. Brake System Overhaul: Caliper piston removal, seal replacement, master cylinder servicing, fluid flush and bleed. Electrical Diagnostics: Testing of ignition coils, charging system components, and wiring harness continuity checks. Carburetor Rebuild And Sync: Detailed steps for dismantling, cleaning, reassembling, and synchronizing the carburetors. Technical Depth Depth Level: Comprehensive (covers basic maintenance to full engine and chassis rebuilds, with detailed specifications and diagnostic procedures). 📊 Manual Specifications File Format File Type: PDF Print Quality Quality Description: High-resolution, suitable for printing individual pages or the entire manual. Binding Type Binding Recommendation: Printable and bindable for workshop use (e.g., spiral bound or three-hole punched). Paper Type Recommended Paper: Standard printer paper for home printing; heavier cardstock for cover recommended. ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, Liquid-cooled, V-twin (90-degree) Displacement: 249 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.0:1 (approximate, can vary slightly by market/year) Power Output: Approx. 70-77 hp @ 11,750 rpm (market dependent) Torque: Approx. 38 Nm @ 10,500 rpm (market dependent) Ignition: Digital CDI (Capacitor Discharge Ignition) Lubrication: Autolube (Premix Oil Injection System) Fuel System Carburetor Type: Twin Mikuni T25 (flat-slide, possibly TM series) Fuel Grade Requirement: High-octane unleaded gasoline (RON 95 or higher recommended) Performance Top Speed: Over 140 mph (approximate, dependent on gearing and rider) 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Features Clutch Type: Wet, multi-plate Final Drive: Chain 📐 Dimensions Exterior Length: Approx. 1970 mm Width: Approx. 710 mm Height: Approx. 1100 mm Weights Dry Weight: Approx. 138 kg Wet Weight: Approx. 155 kg (with all fluids) Fuel Capacity: 16 Liters 🛡️ Safety Features Ratings Safety Certification: Not applicable in modern automotive crash test terms; focuses on rider safety through handling and braking. Active Features Braking System: Dual front disc brakes (likely 320mm), single rear disc brake. Brembo calipers commonly featured. Suspension Type: Upside-down (USD) front forks (e.g., Marzocchi or Paioli), adjustable rear monoshock (e.g., Sachs). Passive Features Frame Construction: Twin-spar aluminum alloy frame for high rigidity and light weight. 💡 Technology Features Infotainment Instrumentation: Analog tachometer and speedometer, fuel gauge, coolant temperature gauge, turn signal indicators, warning lights (e.g., oil level, neutral). Driver Assistance Electronics: Limited by modern standards. Focus is on mechanical precision and performance. CDI ignition system is the primary electronic control. Connectivity Connectivity Features: None. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 km or annually (check manual for specifics) Spark Plug Replacement: Every 6,000-10,000 km, or as per manual recommendations (typically NGK BR9EG or similar). Air Filter Cleaning: Every 3,000-6,000 km, depending on riding conditions. Chain Lubrication And Adjustment: Every 500-1,000 km, or after riding in wet conditions. Fluid Specifications Engine Oil Type: 2-stroke motorcycle specific oil (e.g., Motul 800 2T, Castrol TTS, or equivalent pre-mix oil). Transmission Oil Type: API GL-4 or GL-5 SAE 75W-90 synthetic gear oil. Capacity: Approx. 1.0-1.1 Liters (check manual). Coolant...