🏷️ Basic Information Identification Make: Aprilia Model: RS 250 Year: 2005 Codes Engine Code: Rotax 257 👋 Introduction Market Position Market Position: The Aprilia RS 250 (2005 model) was a highly regarded, track-focused 250cc two-stroke sportbike known for its sharp handling, potent performance, and premium components, competing with bikes like the Yamaha YZF-R25 and Suzuki RGV250. Competitive Analysis Competitive Analysis: This manual provides factory-level detail, equivalent to what official Aprilia dealerships use, offering superior technical depth and accuracy compared to generic aftermarket repair guides. It caters to owners who demand precise information for maintaining and repairing their high-performance motorcycle. Key Features Key Features: Comprehensive step-by-step instructions, detailed diagrams, electrical schematics, torque specifications, fluid capacities, and troubleshooting guides, all presented in an easily navigable PDF format. 📋 Manual Details Coverage Areas Coverage Areas: General Information, Periodic Maintenance, Tune-Up Procedures, Engine, Fuel and Lubrication System, Cooling System, Electrical System, Chassis, Servicing Information, Updates Page Count Page Count: Unknown (typical factory service manuals for this era are extensive, likely 500+ pages) Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine Mechanical (Top End, Bottom End), Fuel System (Carburetion, Fuel Pump), Lubrication System (Oil Pump, Premixing), Cooling System (Radiator, Water Pump), Ignition System, Electrical System (Wiring Diagrams, Components), Chassis (Frame, Suspension - Front and Rear, Steering, Wheels, Brakes - Front and Rear, Swingarm, Drive Chain), Exhaust System, Bodywork (Fairings, Seat, Fuel Tank) Procedures Included Procedures Included: Routine Maintenance (oil changes, filter replacements, spark plug replacement, chain adjustment/lubrication), Tune-Up Procedures (carburetor synchronization, ignition timing), Engine Overhaul (piston/cylinder inspection and replacement, crankshaft and bearing inspection, seal replacement), Fuel System Diagnosis and Repair, Cooling System Bleeding and Component Replacement, Electrical System Troubleshooting (component testing, wiring harness repair), Brake System Service (pad replacement, caliper overhaul, bleeding), Suspension Fork Overhaul, Rear Shock Absorber Service, Wheel Bearing Replacement, Steering Head Bearing Service, Clutch Adjustment and Component Replacement, Transmission Gearbox Inspection and Repair, Exhaust System Repair/Replacement, Diagnostic Procedures, Torque Specifications for all fasteners, Fluid Capacities, Component Removal and Installation Technical Depth Technical Depth: Comprehensive, covering from basic owner-level maintenance to advanced mechanical and electrical diagnostics and repairs, including full engine rebuilds and chassis component overhauls. 📊 Manual Specifications File Format File Format: PDF File Requirements: Adobe PDF Reader, WinZip Interactivity: Zoom in/out functionality for diagrams and text Compatibility Operating System Compatibility: All Versions of Windows & Mac Print Quality Print Quality: High Resolution (as per dealer standard), suitable for printing. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, V-twin (derived from Suzuki RGV250 Gamma engine) Displacement: 249.2 cc Bore X Stroke: 54.0 mm x 54.5 mm Compression Ratio: 7.1:1 (approx.) Performance Horsepower: Approximately 70-75 HP (at crankshaft, depending on market regulations and specific tuning) Torque: Approximately 30-33 lb-ft (at crankshaft, depending on market) Fuel System Carburetion: Twin Mikuni TM34SS flat-slide carburetors Fuel Type: Unleaded gasoline (minimum 95 RON recommended) Lubrication Lubrication System: Separate oil injection system for 2-stroke oil, plus engine oil for transmission and crankcase. Recommended 2 Stroke Oil: API TC or JASO FD certified synthetic 2-stroke oil. Cooling System Cooling System: Pressurized liquid cooling with electric fan. Coolant Type: Ethylene glycol-based coolant with anti-corrosion additives (50/50 mix with distilled water). 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Features Clutch Type: Wet multi-plate clutch, cable-actuated Final Drive: Chain drive (520 O-ring chain) Transmission Oil Type: API GL-4 or GL-5, SAE 75W-90 or 80W-90 gear oil. 📐 Dimensions Exterior Length: Approximately 1950 mm (76.8 in) Width: Approximately 720 mm (28.3 in) at handlebars Height: Approximately 1080 mm (42.5 in) at seat Wheelbase: Approximately 1365 mm (53.7 in) Weights Dry Weight: Approximately 142 kg (313 lbs) Wet Weight: Approximately 167 kg (368 lbs) (with all fluids) Capacities Fuel Tank Capacity: 16 liters (4.2 US gallons) Oil Tank Capacity: 1.4 liters (0.37 US gallons) 🛡️ Safety Features Passive Features Frame Type: Aluminum alloy twin-spar frame Active Features Braking System Front: Dual 320mm discs with 4-piston calipers (Brembo) Braking System Rear: Single 240mm disc with 2-piston caliper (Brembo) Suspension Front: 41mm upside-down (USD) telescopic forks, adjustable preload, compression, and rebound damping (Showa) Suspension Rear: Monoshock with adjustable preload, compression, and rebound damping (Progressive, Sachs or Showa) Tires Front Tire Size: 120/70ZR17 Rear Tire Size: 160/60ZR17 💡 Technology Features Infotainment Infotainment Features: N/A (This is a performance sportbike from an era before advanced infotainment systems. Features are limited to analog instrumentation.) Driver Assistance Driver Assistance Features: N/A (No electronic rider aids like ABS or traction control are present on this model.) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 km (1,800 - 3,000 miles) or annually. Transmission oil every 6,000 - 10,000 km (3,700 - 6,200 miles). Spark Plug Replacement: Every 5,000 -...