🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1995 Generation Generation Designation: MK I Codes Chassis Code: AP8101A Engine Code: Rotax 257 👋 Introduction Market Position Market Segment: High-performance, track-focused sportbike for the supersport segment. Competitive Analysis Competitors 1995: Yamaha YZF600R, Kawasaki Ninja ZX-6, Suzuki GSX-R600, Honda CBR600F. Key Features Key Features: Lightweight chassis, potent V-twin two-stroke engine, advanced suspension components, race-inspired styling, exceptional power-to-weight ratio. Target Audience Target Audience: Enthusiast riders, track day participants, and experienced DIY mechanics seeking in-depth knowledge for maintenance and repair. 📋 Manual Details Coverage Areas Systems Covered: Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Transmission, Clutch, Chassis, Suspension (Front & Rear), Brakes (Front & Rear), Electrical System, Wheels & Tires, Bodywork, Troubleshooting, Maintenance, Specifications. Page Count Page Count: Approximately 300 pages (estimated based on typical factory service manuals of this era and coverage scope) Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed disassembly, inspection, repair, and reassembly of the Rotax 257 two-stroke V-twin engine, including cylinder head, cylinders, pistons, connecting rods, crankshaft, and crankcase. Fuel System: Carburetor (Mikuni TMR32) tuning, cleaning, overhaul, and jetting specifications. Fuel tank and fuel line maintenance. Ignition System: CDI ignition system troubleshooting, coil specifications, and timing procedures. Cooling System: Radiator, coolant, water pump, and thermostat inspection and service. Exhaust System: Expansion chamber analysis, cleaning, and installation. Transmission Clutch: Gearbox disassembly, inspection, and repair. Clutch operation, adjustment, and replacement of friction plates and springs. Chassis Frame: Frame integrity checks, headstock bearing service, and general chassis component inspection. Suspension Front: Front fork (Showa) disassembly, seal replacement, oil level and viscosity specifications, damping adjustments, and spring preload. Suspension Rear: Monoshock (Ohlins) service, linkage lubrication, spring adjustment, and damping control. Brakes Front: Brake caliper disassembly, piston inspection, pad replacement, master cylinder overhaul, and fluid bleeding procedures. Disc specifications. Brakes Rear: Rear brake caliper, master cylinder, and pad replacement. Disc specifications. Electrical System: Wiring diagrams, battery maintenance, charging system (stator, regulator/rectifier), lighting, and starter motor service. Wheels Tires: Wheel bearing service, tire mounting and balancing, and recommended tire pressures. Bodywork: Fairing removal and installation, seat, fuel tank, and panel component details. Procedures Included Maintenance: Regular scheduled maintenance, lubrication points, and component checks. Troubleshooting: Diagnostic flowcharts and common problem identification for engine, electrical, and chassis issues. Repair Rebuild: Comprehensive step-by-step instructions for major component disassembly, repair, and reassembly. Adjustment: Carburetor synchronization, clutch lever adjustment, chain tensioning, and suspension tuning. Inspection: Detailed guides for inspecting critical components for wear and damage. Technical Depth Depth: Complete factory-level repair and overhaul procedures, suitable for both professional mechanics and experienced DIY enthusiasts. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution scans for clear text and diagrams, suitable for printing. Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, V-twin Displacement: 249 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.5:1 (nominal, can vary slightly) Valve Actuation: Reed valve induction Power Delivery: Suzuki RG500 Gamma derived engine architecture Performance Horsepower: Approx. 70 HP @ 11,000 RPM (claimed at crank) Torque: Approx. 28 lb-ft @ 10,500 RPM (claimed at crank) Fuel System Carburetors: 2 x Mikuni TMR32 flat-slide, dual-throttle carburetors Fuel Type: Unleaded gasoline (minimum 95 RON recommended for optimal performance) Fuel Delivery: Premix (manual or automatic oil injection system) 🔧 Transmission Standard Transmission Type: 6-speed sequential, constant mesh Optional Optional Gear Ratios: N/A (single gear ratio set standard) Features Clutch Type: Wet multi-plate, cable-actuated Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1990 mm (78.3 in) Width: Approx. 720 mm (28.3 in) Height: Approx. 1110 mm (43.7 in) Wheelbase: Approx. 1375 mm (54.1 in) Ground Clearance: Approx. 140 mm (5.5 in) Weights Dry Weight: Approx. 130 kg (287 lbs) Wet Weight: Approx. 147 kg (324 lbs) Fuel Capacity: 16 liters (4.2 US gallons) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety is not typically rated by organizations like NHTSA or Euro NCAP) Active Features Active Safety Features: Responsive braking system, agile handling, rider control aids (though no electronic rider aids like ABS or TC were available). Passive Features Passive Safety Features: Frame design, rider seating position, and protective fairings. 💡 Technology Features Infotainment Infotainment System: N/A (No electronic infotainment features, focus is purely on performance). Driver Assistance Driver Assistance Features: N/A (No electronic rider assistance systems like ABS or traction control). Engine Management Engine Management: CDI ignition system with mechanical timing adjustments. Power valve system (RSV 'Rotary Slipper Exhaust') for improved low-end torque and mid-range power. 🔧 Maintenance Service Intervals Oil Change Interval: Every 6,000 km (3,700 miles) or annually (engine oil/transmission oil). Spark Plug Replacement: Every 6,000 km (3,700 miles) or as needed. Chain Lubrication: Every 500...