🏷️ Basic Information Identification Make: Aprilia Model: RS 250 Model Code: FG Generation Generation: First Generation (MK1), Second Generation (MK2) Codes Engine Code Range: Rotax 2-stroke V-twin 👋 Introduction Market Position Market Segment: High-performance sportbike, lightweight two-stroke category Competitive Analysis Key Competitors: Yamaha YZF-R25 (later models), Suzuki RGV250, Honda NSR250, Kawasaki KR-1S Key Features Engine Type: Liquid-cooled, 90-degree V-twin, two-stroke Frame Type: Aluminum twin-spar frame Suspension Features: Upside-down front forks, adjustable rear monoshock Braking Features: High-performance disc brakes, often with radial-mount calipers 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair Page Count Estimated Pages: High volume (typically 300+ pages for a full service manual) Manual Type Type: Service Repair Manual Language Language: English (likely, common for Aprilia service documentation) Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Two-stroke V-twin engine: teardown, assembly, lubrication, cooling, fuel injection/carburetion, ignition, exhaust Transmission: Gearbox: disassembly, assembly, gear ratios, shift mechanism, clutch operation Chassis: Frame, subframe, swingarm, steering head bearings, suspension (front forks, rear shock absorber) Brakes: Hydraulic braking system: front and rear calipers, master cylinders, brake lines, bleeding procedures, pad replacement Electrical: Wiring diagrams, battery, charging system (alternator, regulator/rectifier), ignition system, lighting, instrumentation, starter motor Fuel System: Carburetor (if applicable to specific model year), fuel pump, fuel lines, fuel tank Cooling System: Radiator, coolant hoses, water pump, thermostat, fan operation Exhaust System: Exhaust pipes, mufflers, power valves (if applicable) Wheels Tires: Wheel bearings, tire pressure, wheel removal/installation Bodywork: Fairings, seat, fuel tank, fenders, graphics Procedures Included Maintenance: Routine service, oil changes, filter replacements, spark plug replacement, chain adjustment, lubrication Troubleshooting: Diagnostic flowcharts, common problems and solutions, fault codes (if applicable) Repair: Component overhaul, assembly, disassembly, replacement of parts Calibration: Carburetor synchronization and tuning, ignition timing adjustments Special Tools: Listing and usage of specialized tools required for specific tasks Technical Depth Depth: Detailed technical specifications, torque values, clearances, diagnostic procedures, full rebuild instructions 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval Printability: Printable pages for on-site use Print Quality Image Resolution: High-resolution images and diagrams Binding Type Binding: Not Applicable (PDF format) Paper Type Paper Type: Not Applicable (PDF format) ⚙️ Engine Specifications Primary Engine Engine Displacement: 249 cc (250 cm³) Bore X Stroke: 54 x 54.5 mm (typical for Rotax 257) Compression Ratio: Approx. 7.2:1 (varies by model year/spec) Engine Type: Two-stroke V-twin Cooling System: Liquid-cooled Performance Horsepower: Approx. 60-70 HP (depending on specific market and tuning) Torque: Approx. 30-35 Nm (depending on specific market and tuning) Redline: Around 11,000 - 12,000 RPM Fuel System Carburetion: Dual 32mm or 34mm Mikuni flat-slide carburetors (common on early models); later models may have transitioned or offered specific carb setups. Fuel Type: Unleaded gasoline (minimum 95 RON recommended for optimal performance) Oil Mixing: Pre-mix or automatic oil injection system (Vareo system) Ignition System Ignition Type: Digital CDI with electronic advance 🔧 Transmission Standard Transmission Type: 6-speed constant mesh sequential gearbox Optional Optional Gearbox: N/A (standard 6-speed manual) Features Clutch Type: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 2000 mm (varies slightly by year) Width: Approx. 700-730 mm (varies slightly by year) Height: Approx. 1140 mm (varies slightly by year) Wheelbase: Approx. 1365-1380 mm (varies slightly by year) Weights Dry Weight: Approx. 140-145 kg Wet Weight: Approx. 160-165 kg Fuel Tank Capacity: Approx. 16 liters (including reserve) 🛡️ Safety Features Ratings Safety Rating: Motorcycle safety standards apply; not typically rated by automotive crash agencies. Active Features Active Safety: Effective braking system, responsive handling, rider skill dependent Passive Features Passive Safety: Frame integrity, rider protection (helmet, gear) is paramount 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on performance, not infotainment) Driver Assistance Driver Assistance Features: N/A (Focus is on rider engagement) Connectivity Connectivity Options: N/A Engine Management Engine Management Tech: Digital CDI with electronic ignition timing adjustment, power valve system (often electronically controlled on later models or race variants). 🔧 Maintenance Service Intervals Oil Change: Every 3,000-5,000 km or annually (engine oil); gearbox oil inspection every 5,000-7,000 km, change every 10,000-15,000 km. Spark Plug Replacement: Every 5,000-7,000 km (NGK BR9EG or equivalent) Air Filter Cleaning: Every 5,000 km or as needed based on conditions Chain Lubrication: Every 500-700 km or after riding in wet conditions Fluid Specifications Engine Oil Type: High-quality 2-stroke synthetic oil (e.g., Motul 710, Castrol TTS, Silkolene Comp 2) - check manual for specific API/JASO rating. Gearbox Oil Type: SAE 10W-40 or 20W-50 API GL-4 or GL-5 gear oil (check manual for specific viscosity) Coolant Type: Ethylene glycol-based antifreeze mixture (50/50 with distilled water recommended) Brake Fluid Type: DOT 4 or DOT 5.1 (check manual for exact specification and change interval, typically every 2 years) Known Issues Engine Wear: Piston ring and cylinder wear due to high-revving nature; potential for power valve issues if not properly maintained....