🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1998 Codes Internal Model Code: 945W 👋 Introduction Market Position Positioning: High-performance, track-inspired 250cc two-stroke sportbike Competitive Analysis Competitors: Yamaha YZF-R250, Honda CBR250RR (MC28), Suzuki RGV250 Key Features Engine Type: V-twin, two-stroke, liquid-cooled Design Inspiration: Based on Suzuki RG250 Gamma VJ22A platform, renowned for its sharp handling and potent engine 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Page Count Estimated Pages: 300-400 Manual Type Type: Workshop Manual / Service Manual Language Language: English Format Format: Digital (Likely PDF) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, ignition, cooling, lubrication, fuel system (carburetor specifics) Transmission: Gearbox disassembly, assembly, clutch operation, gear change mechanism Chassis: Frame inspection, suspension (front forks, rear shock), steering, wheels, brakes (hydraulic system, calipers, discs) Electrical: Wiring diagrams, lighting, ignition system, battery, charging system, instrumentation, sensors Fuel System: Carburetor jetting, float bowl adjustment, fuel lines, fuel tank Procedures Included Maintenance: Regular servicing, fluid changes, chain adjustment, brake pad replacement, spark plug service Troubleshooting: Diagnosis of common problems, fault finding guides, electrical issue resolution Repair: Engine rebuild, gearbox repair, suspension overhaul, brake caliper servicing, exhaust system maintenance Disassembly Assembly: Step-by-step instructions for component removal and reinstallation Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds and electrical system diagnosis) Diagnostic Information: Detailed fault codes, symptom analysis, and diagnostic procedures 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable (OCR applied if necessary) Print Quality Printability: High-resolution images and diagrams for clear printing Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 90-degree V-twin, two-stroke Displacement: 249 cc (249 cm³) Bore X Stroke: 54.0 mm x 54.5 mm Compression Ratio: 7.1:1 (for 1998 model) Ignition System: CDI (Capacitor Discharge Ignition) Lubrication: Premix or Autolube system (manual will detail both maintenance and troubleshooting) Performance Horsepower: Approximately 70-75 HP (at crank, depending on market and tuning) Torque: Approximately 30-33 lb-ft (at crank) Fuel System Carburetors: Twin Mikuni TM34SS flat-slide carburetors Fuel Type: Unleaded gasoline (91 octane or higher recommended) Engine Codes Engine Serial Number Location: Stamped on crankcase (manual will specify exact location) 🔧 Transmission Standard Type: 6-speed constant mesh sequential gearbox Features Clutch: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approximately 1980 mm Width: Approximately 710 mm Height: Approximately 1135 mm Wheelbase: Approximately 1360 mm Weights Dry Weight: Approximately 142 kg Wet Weight: Approximately 157 kg (fully fueled) Tires Front Tire Size: 120/70-ZR17 Rear Tire Size: 160/60-ZR17 Fuel Capacity Fuel Tank Capacity: 16 Liters 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety is typically assessed through handling dynamics and braking performance) Active Features Braking System: Dual 320mm front discs with 4-piston calipers, 220mm rear disc with 2-piston caliper Suspension Type: Front: 41mm inverted telescopic fork (adjustable preload/rebound on some variants), Rear: Monoshock (adjustable preload/rebound) Passive Features Frame Construction: Aluminum alloy twin-spar frame 💡 Technology Features Infotainment Infotainment System: N/A (Basic analog instrumentation) Performance Enhancements Engine Management: Electronic Power Valve (EPV) system for improved low-end and mid-range power delivery. Suspension Technology: Inverted front forks and adjustable rear monoshock for superior damping and handling characteristics. 🔧 Maintenance Service Intervals Oil Change: Every 3,000-5,000 km or annually (refer to manual for precise interval and oil type) Spark Plug Replacement: Every 6,000-10,000 km (specific plug types will be detailed in manual) Chain Adjustment: Every 1,000 km or as needed Fluid Specifications Engine Oil: High-quality 2-stroke engine oil, specific API/JASO rating (e.g., JASO FD) to be confirmed in manual. Coolant: Ethylene glycol-based coolant, 50/50 mix with distilled water. Brake Fluid: DOT 4 or DOT 5.1 Transmission Oil: SAE 75W/90 or 10W/40 motorcycle gear oil (capacity specified in manual). Known Issues Common Problems: Carburetor jetting sensitivity, exhaust valve issues (RVE), water pump seals, starter motor reliability, power valve cable stretching. Preventative Maintenance: Regular cleaning and adjustment of carburetors, proper autolube system maintenance, checking exhaust valve operation, coolant flush, and timely brake fluid changes are crucial. 📚 Vehicle History Brand Heritage Aprilia History: Italian manufacturer known for its success in Grand Prix motorcycle racing, particularly in the 125cc and 250cc classes. Model Evolution Rs250 Development: Developed in collaboration with Suzuki, utilizing their highly successful RG250 Gamma VJ22A platform, but with Aprilia's own chassis tuning, bodywork, and electrical components. It represented Aprilia's entry into the high-performance 250cc sportbike segment. Production Production Years: 1995-2003 Manufacturing Location: Italy 🏆 Awards & Recognition Recognitions Historical Accolades: While specific awards for the 1998 model are not widely documented, the RS250 platform was highly regarded by the press and enthusiasts for its performance and handling, often praised in period reviews against its competitors.