🏷️ Basic Information Identification Make: Aprilia Model: RS250 Model Code: RS 250 Covered Years: 1994, 1995, 1996, 1997 Codes Vin Code Engine: RGV250-based V-twin 👋 Introduction Market Position Segment: Lightweight two-stroke sportbike Era: Iconic 90s performance motorcycle Competitive Analysis Key Rivals: Yamaha YZF-R6, Suzuki GSX-R600, Kawasaki Ninja ZX-6R (though RS250 occupied a unique niche with its V-twin 2-stroke engine) Key Features Engine Type: Liquid-cooled, 72-degree V-twin, two-stroke Performance Focus: High power-to-weight ratio, sharp handling Handling: Renowned for its agility and feedback, often compared to race bikes of the era 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: Digital (likely PDF) Page Count Estimated Page Count: 300-500 pages (typical for this era/type of manual) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, carburetor settings, cooling system, lubrication Transmission: Gearbox disassembly, inspection, repair, clutch system, shift mechanism Chassis And Suspension: Frame, swingarm, front forks (including suspension adjustments and rebuild), rear shock absorber, steering head bearings Brakes: Front and rear brake systems, caliper overhaul, master cylinder service, hydraulic lines, brake pad replacement Electrical System: Wiring diagrams, ignition system, charging system (stator, regulator/rectifier), lighting, starter motor, battery service, fault diagnosis Fuel System: Fuel tank, fuel lines, fuel pump, carburetor synchronization and cleaning (Mikuni TM32SS) Exhaust System: Expansion chambers, mufflers, mounting Wheels And Tires: Wheel bearing replacement, tire pressure specifications, wheel balancing Procedures Included Maintenance: Regular servicing, oil changes, filter replacement, spark plug checks, chain adjustment, brake fluid flush Troubleshooting: Diagnostic procedures for common performance issues, electrical faults, starting problems Repair: Step-by-step instructions for component disassembly, repair, and reassembly Rebuilds: Engine rebuild procedures, gearbox rebuilds, carburetor overhauls Technical Depth Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts Diagnostic Capability: Detailed troubleshooting guides and diagnostic flowcharts 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Text-searchable (if OCR'd) Print Quality Printability: High-resolution, suitable for printing sections or the entire manual Binding Type Binding Format: Digital, not applicable to physical binding Paper Type Paper Quality: Digital, not applicable to physical paper type ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 72° V-twin, two-stroke Displacement: 249 cc Bore X Stroke: 54.0 mm x 54.5 mm Compression Ratio: 7.2:1 Valves: Reed valve intake, exhaust power valves (APEC system) Performance Horsepower: 72.1 HP @ 11,000 RPM (approximate, depending on market tune) Torque: 4.03 kgf·m (39.5 Nm; 29.1 lb-ft) @ 10,500 RPM (approximate) Fuel System Carburetors: 2 x Mikuni TM32SS constant velocity (CV) carburetors Fuel Delivery: Premix lubrication (automatic oil injection) Cooling System Type: Liquid-cooled Ignition Type: Digital CDI with electronic power valve control 🔧 Transmission Standard Type: 6-speed, constant mesh, sequential manual Clutch: Wet, multi-plate, cable-actuated Features Gear Ratios: Refer to manual for specific ratios (typically close-ratio) Final Drive: Chain drive 📐 Dimensions Exterior Length: 1970 mm (approx.) Width: 710 mm (approx.) Height: 1135 mm (approx.) Wheelbase: 1365 mm (approx.) Ground Clearance: 130 mm (approx.) Weights Dry Weight: 141 kg (approx.) Wet Weight: 155 kg (approx., with fluids) Fuel Capacity: 16 liters Oil Capacity: 1.4 liters (for gearbox) 🛡️ Safety Features Ratings Crash Test Ratings: Not applicable to motorcycles of this era; safety primarily relies on rider skill and braking system performance Active Features Braking System: Dual 320mm discs with 4-piston calipers (front), 240mm disc with 2-piston caliper (rear) Suspension: Fully adjustable front forks (40mm Showa), adjustable rear monoshock (Showa) Passive Features Frame Type: Aluminum twin-spar frame Lighting: Halogen headlight, LED tail light 💡 Technology Features Infotainment Infotainment System: Not applicable (focus on pure performance, no integrated electronics) Performance Enhancements Power Delivery Control: Electronic controlled power valves (APEC system) optimize power output across the rev range. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000 - 5,000 km or annually (refer to manual for specific recommendations based on riding) Spark Plug Replacement: Every 5,000 - 10,000 km (NGK BR9ES or equivalent) Air Filter Cleaning: Every 3,000 - 6,000 km Chain Lubrication And Adjustment: Every 500 - 1,000 km Brake Fluid Flush: Every 2 years Fluid Specifications Engine Oil Type: High-quality 2-stroke synthetic or semi-synthetic oil for racing applications (e.g., Motul 800 2T Factory Line) Gearbox Oil Type: SAE 10W-40 API GL-4 transmission oil (e.g., Motul Gear 75W90) Coolant Type: Ethylene glycol based antifreeze coolant (50/50 mix with distilled water) Brake Fluid Type: DOT 4 hydraulic brake fluid Known Issues Power Valve Sticking: Carbon buildup can cause power valves to stick, affecting engine performance. Regular cleaning is crucial. Carburetor Tuning: Mikuni TM32SS carbs can be sensitive to altitude and temperature changes, requiring periodic adjustments. Rear Shock ABSorber: OEM shock can degrade over time; upgrades are common for improved damping. Electrical Connections: Corrosion on connectors, especially around the regulator/rectifier, can cause charging issues. Cooling System Leaks: Hose degradation or radiator damage can lead to coolant leaks. 📚 Vehicle History Brand Heritage Brand Origin: Italian manufacturer founded in 1911 Racing Legacy:...