🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1995 Product Name: Aprilia RS250 1995 Repair Service Manual 👋 Introduction Market Position Bike Segment: High-performance sportbike, direct competitor to Yamaha YZF-R6, Honda CBR600F, and Suzuki GSX-R600 of the era. Usp: Renowned for its potent V-twin two-stroke engine derived from Suzuki RGV-Gamma racing technology, sharp handling, and aggressive styling. Competitive Analysis Competitors: Suzuki RGV250, Yamaha TZR250, Kawasaki KR-1S. Key Features Engine Type: Liquid-cooled, 90-degree V-twin, two-stroke, reed valve induction. Performance Focus: High-revving powerband, excellent power-to-weight ratio. Handling: Lightweight chassis, advanced suspension components, and racing-derived geometry contribute to exceptional agility and cornering ability. 📋 Manual Details Coverage Areas Target Audience: Professional Technicians and Skilled Enthusiasts Geographic Coverage: Global (specifications applicable to most markets) Page Count Estimated Page Count: Likely 300-500 pages (typical for comprehensive service manuals of this era) Manual Type Type: Repair Service Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage of the 249cc V-twin, liquid-cooled, two-stroke engine, including disassembly, assembly, lubrication, cooling system, and carburetion (likely Dell'Orto PHBH). Fuel System: Carburetor tuning, jetting, float adjustment, fuel lines, and fuel pump operation. Transmission: Six-speed gearbox, clutch operation, lubrication, and overhaul procedures. Chassis And Frame: Frame inspection, welding points, steering head bearing adjustment, and suspension mounting. Suspension Front: Upside-down telescopic forks (likely Showa or Marzocchi), damping adjustments, seal replacement, oil levels, and spring rates. Suspension Rear: Monoshock rear suspension, linkage system, shock absorber service, and adjustment procedures. Brakes Front: Dual hydraulic disc brakes, caliper overhaul, pad replacement, fluid bleeding, master cylinder service, and disc specifications. Brakes Rear: Single hydraulic disc brake, caliper overhaul, pad replacement, fluid bleeding, and master cylinder service. Wheels And Tires: Wheel bearing inspection and replacement, tire pressure recommendations, and wheel balancing. Electrical System: Wiring diagrams, lighting circuits, ignition system, battery maintenance, starter motor, and charging system (alternator/stator). Exhaust System: Expansion chamber design principles, leak detection, and gasket replacement. Procedures Included Routine Maintenance: Oil changes, chain adjustment, spark plug replacement, air filter cleaning/replacement, and brake fluid checks. Troubleshooting: Diagnostic charts and procedures for common performance issues, starting problems, and system malfunctions. Engine Rebuild: Detailed instructions for top-end and bottom-end engine rebuilds, including piston, ring, and cylinder specifications. Carburetor Adjustment: Step-by-step guides for setting idle speed, mixture, and synchronizing carburetors. Suspension Overhaul: Complete procedures for fork and shock absorber disassembly, cleaning, reassembly, and fluid replacement. Brake System Service: Bleeding procedures, caliper and master cylinder seal replacement, and fluid specifications. Electrical Diagnostics: Troubleshooting common electrical faults, testing components, and interpreting wiring diagrams. Technical Depth Depth: Comprehensive: Covers everything from basic maintenance and adjustments to complete engine rebuilds, electrical system diagnostics, and chassis component overhauls. Detail Level: High: Includes detailed torque specifications, clearances, part numbers, and diagnostic flowcharts. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable (depending on PDF conversion quality) Print Quality Print Readability: Excellent (designed for clear reproduction of diagrams and text) Binding Type Binding: Not Applicable (Digital PDF) Paper Type Paper Quality: Not Applicable (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 90-degree V-twin, two-stroke Displacement: 249 cc (cc) Bore X Stroke: 54 mm x 54.5 mm Valvetrain: Reed Valve Induction Performance Horsepower Claimed: Approx. 70 hp @ 11,000 rpm (market dependent) Torque Claimed: Approx. 32 lb-ft @ 10,500 rpm (market dependent) Fuel System Carburetors: Dual 38 mm Dell'Orto PHBH (or similar) Fuel Type: Unleaded gasoline (95 RON or higher recommended) Lubrication Oil System: Autolube (automatic oil injection) Cooling System Cooling Method: Liquid-cooled 🔧 Transmission Standard Type: 6-speed constant mesh Clutch Type: Wet multi-plate Features Gear Ratios: Specific gear ratios detailed in manual (essential for performance tuning) Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1975 mm (market dependent) Width: Approx. 710 mm (market dependent) Height: Approx. 1140 mm (market dependent) Weights Dry Weight: Approx. 141 kg Wet Weight: Approx. 155 kg (fully fueled and fluids) Fuel Capacity: 16 Liters 🛡️ Safety Features Ratings Crash Test Ratings: Not Applicable (Motorcycle, not subject to automotive crash testing standards) Active Features Braking System: Powerful dual front discs and single rear disc with hydraulic actuation. Suspension Stability: Performance-oriented suspension provides stability during cornering and braking. Passive Features Frame Design: Sturdy twin-spar aluminum frame for rigidity and rider confidence. Rider Ergonomics: Aggressive sportbike ergonomics put the rider in an optimal position for control. 💡 Technology Features Infotainment System: Basic analog instrumentation: Speedometer, tachometer, coolant temperature gauge, and indicator lights. Driver Assistance Features: None (This is a 1995 sportbike, focused on pure riding dynamics). 🔧 Maintenance Service Intervals Oil Change Interval: Recommended every 3,000-4,000 km or annually (refer to manual for precise intervals). Spark Plug Replacement: Recommended every 5,000-8,000 km (specific plug types detailed in manual). Chain Lubrication: Recommended every 500-800 km and after riding in wet conditions. Fluid Specifications Engine Oil Type: Two-stroke engine oil, specifically formulated for...