🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1998 Codes Internal Model Code: 945W 👋 Introduction Market Position Positioning: The Aprilia RS250 was a high-performance, race-derived sportbike that competed directly with other 250cc two-stroke sportbikes of its era, offering exceptional handling and a potent engine. Competitive Analysis Competitors: Suzuki RGV250, Yamaha TZR250, Honda NSR250 Key Features Handling: Renowned for its agile chassis and superb handling characteristics, derived from Aprilia's Grand Prix racing experience. Engine Type: V-twin, liquid-cooled, two-stroke engine known for its powerband and distinctive sound. Manual Utility Utility: Essential for owners and technicians to maintain, diagnose, and repair the Aprilia RS250 effectively, ensuring optimal performance and longevity. 📋 Manual Details Coverage Areas Primary Coverage: Full Factory Service Repair Scope: Complete diagnosis, repair, maintenance, and specifications Page Count Estimated Pages: Hundreds of pages (specific count not provided, but described as comprehensive) Manual Type Type: Factory Service Repair Manual Language Language: English (assumed for typical North American market manuals, but confirmed upon purchase) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Full engine overhaul, disassembly, reassembly, tuning, lubrication system, cooling system, fuel delivery, ignition system, exhaust system Transmission: Gearbox overhaul, clutch service, shift mechanism, lubrication Chassis: Frame inspection and repair, suspension (front forks, rear shock absorber), steering system, wheel bearings, swingarm Brakes: Front and rear brake system service, caliper overhaul, master cylinder service, fluid replacement, bleeding procedures, disc and pad inspection Electrical: Wiring diagrams, lighting system, ignition system components, charging system, battery service, starter motor, fuses, relays, diagnostic procedures Bodywork: Fairing removal and installation, seat, fuel tank, body panel alignment, minor body repairs Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes (oil, coolant, brake fluid), filter replacements, chain adjustment, general inspections Troubleshooting: Diagnostic flowcharts, common problems and their solutions, symptom-based troubleshooting guides Repair: Step-by-step repair instructions for all major components, including engine rebuilds, transmission overhauls, and suspension repairs Technical Data: Torque specifications, clearances, timing settings, electrical resistance values, diagnostic codes Technical Depth Depth: Comprehensive. Covers everything from basic user maintenance to complete engine and transmission rebuilds, including advanced diagnostics and electrical troubleshooting. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-resolution, suitable for printing individual pages or the entire manual. Binding Type Binding: N/A (Digital Download - PDF) Paper Type Paper Type: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Configuration: V-twin (90-degree) Displacement: 249 cc Bore X Stroke: 54 x 54.5 mm Cooling System: Liquid-cooled Induction: Reed valve induction Performance Horsepower: Approximately 70-75 hp at the crankshaft (depending on market restrictions) Torque: Approximately 45 Nm (33 lb-ft) Redline: Around 11,500 rpm Fuel System Carburetors: Twin Mikuni TM34 flat-slide carburetors Fuel Type: Unleaded gasoline (minimum 95 RON/91 AKI recommended) Lubrication System: Autolube (automatic oil injection) Oil Type: 2-stroke synthetic oil (e.g., Motul 800 2T Factory Line, Castrol TTS) Ignition System: Digital CDI 🔧 Transmission Standard Type: 6-speed manual constant mesh Features Clutch: Wet multi-plate Final Drive: Chain drive Transmission Oil Type: 2-stroke engine oil (mixed with fuel) Gearbox Oil Type: API GL-4 75W-90 or 80W-90 gear oil (check manual for specific specifications) 📐 Dimensions Exterior Length: Approximately 1980 mm (78 in) Width: Approximately 720 mm (28.3 in) Height: Approximately 1130 mm (44.5 in) Wheelbase: Approximately 1370 mm (53.9 in) Weights Dry Weight: Approximately 130 kg (286.6 lbs) Wet Weight: Approximately 147 kg (324 lbs) Fuel Capacity: 16 Liters (4.2 US gallons) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycles generally do not receive crash test ratings like cars) Active Features Braking System: Dual front discs, single rear disc. High-performance braking components. Suspension Performance: Adjustable front forks (preload, compression, rebound) and rear shock absorber contribute to stability and control. Passive Features Frame Construction: Aluminum twin-spar frame provides rigidity and stability. 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on performance, not rider comfort/infotainment features of modern bikes). Driver Assistance Assistance Features: N/A (No electronic rider aids like ABS or traction control found on this model). Engine Management Engine Management Features: Digital CDI ignition system with electronically controlled power valve (RSV) for optimized power delivery across the rev range. 🔧 Maintenance Service Intervals Oil Change Engine: Check 2-stroke oil reservoir regularly. Engine oil (gearbox) typically checked at 6,000 km or annually. Refer to manual for specific intervals. Spark Plug Replacement: Refer to manual; typically around 6,000-12,000 km depending on usage and plug type. Chain Lubrication Adjustment: Lubricate chain every 500 km or after riding in wet conditions. Adjust slack as per manual specifications (e.g., 20-30mm). Coolant Replacement: Every 2 years or as per manual recommendations. Fluid Specifications Engine Oil Type: High-quality 2-stroke synthetic oil for autolube system (e.g., Motul 800, Castrol A747). Gearbox Oil Type: API GL-4 75W-90 or 80W-90 gear oil. Brake Fluid Type: DOT 4 or DOT 5.1 (check manual for specific recommendation and compatibility). Coolant Type: Ethylene glycol-based coolant with anti-corrosion additives,...