🏷️ Basic Information Identification Make: Aprilia Model: RS 250 Year: 1998 Vehicle Type: Sportbike Generation Generation Code: MK1 Codes Chassis Code: ZDM01 👋 Introduction Market Position Positioning: High-performance, track-focused sportbike, direct competitor to contemporary 250cc class machines from Japanese manufacturers. Competitive Analysis Competitors: Honda CBR250RR, Kawasaki Ninja ZX-2R, Yamaha YZF-R25 (where applicable). Key Features Features: V-twin 2-stroke engine, advanced chassis dynamics inspired by larger Aprilia sportbikes, aggressive styling. Manual Usefulness Benefit To Owner: Empowers owners to perform maintenance and repairs, saving on labor costs and ensuring proper upkeep. Facilitates quick troubleshooting and problem resolution. Manual Detail Level Detail Description: Contains step-by-step instructions, abundant pictures, and diagrams for clear understanding, making it accessible for various skill levels. 📋 Manual Details Coverage Areas Coverage: Comprehensive service, repair, and diagnostic information for the 1998 Aprilia RS 250. Page Count Estimated Pages: N/A (PDF download, page count can vary based on rendering) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: 2-stroke V-twin, ignition, fuel injection, lubrication, cooling, exhaust. Fuel System: Fuel injection system diagnosis, throttle body servicing, fuel pump, injectors. Cooling System: Radiator, hoses, water pump, thermostat, coolant specifications. Lubrication System: 2-stroke oil injection system, oil types, capacities, and maintenance. Electrical System: Wiring diagrams, battery, charging system, lighting, ignition system, starter motor, sensors, ECUs. Chassis: Frame, suspension (front forks, rear shock), steering, wheels, brakes (front and rear), drive chain. Bodywork: Fairings, seat, fuel tank, panels, removal and installation procedures. Emission Control: Emission control information and related system checks. Procedures Included Maintenance: Periodic maintenance schedule, fluid changes, filter replacements, chain adjustment, general inspections. Diagnosis: FI system diagnosis, troubleshooting common issues, electrical system diagnostics. Repair: Engine overhaul, gearbox service, suspension rebuild, brake caliper overhaul, electrical component replacement. Servicing: Step-by-step instructions for various servicing tasks. Rebuilds: Detailed procedures for engine and component rebuilds. Technical Depth Depth: Dealership-level technical detail, suitable for professional mechanics and advanced DIY enthusiasts. 📊 Manual Specifications File Format Compatibility: Windows and Mac operating systems. Print Quality Printable: All pages are printable. Binding Type Binding: N/A (Digital PDF download) Paper Type Paper Type: N/A (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Type: V-twin, 2-stroke, liquid-cooled Displacement: 249.2 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.5:1 Power Output Hp: ~70 hp @ 11,000 rpm (approximate, depending on market restrictions) Torque Nm: ~39 Nm @ 9,000 rpm (approximate) Performance Redline: 12,500 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with twin injectors per cylinder Ignition System: Digital CDI with variable ignition timing Carburetor Type: N/A (FI System) Lubrication System Oil System: Automatic 2-stroke oil injection Recommended Oil: High-quality synthetic 2-stroke oil (specifics in manual) Cooling System Cooling Method: Liquid-cooled Coolant Capacity: Approximately 1.7 Liters (check manual for exact figure) 🔧 Transmission Standard Type: 6-speed constant mesh Clutch: Wet multi-plate, cable-actuated Final Drive: Chain drive Features Gear Ratios: Detailed gear ratios provided in the manual for troubleshooting and performance analysis. Transmission Fluid: Specific transmission fluid type and capacity detailed in manual. 📐 Dimensions Exterior Length: Approximately 2010 mm Width: Approximately 720 mm Height: Approximately 1150 mm Weights Dry Weight: Approximately 152 kg Wet Weight: Approximately 171 kg (with all fluids) Fuel Capacity: 16 Liters Wheels And Tires Front Tire Size: 120/70 ZR17 Rear Tire Size: 160/60 ZR17 Wheel Bolt Pattern: N/A (Cast alloy wheels, specific hub details in manual) 🛡️ Safety Features Ratings Safety Certifications: Not applicable for motorcycle safety ratings in the same way as cars. Active Features Braking System: Dual front discs (320mm) with 4-piston calipers, single rear disc (240mm) with 2-piston caliper. ABS not equipped. Passive Features Lighting: Halogen headlight, taillight, turn signals. 💡 Technology Features Infotainment Infotainment System: N/A (Basic analog instrumentation: speedometer, tachometer, coolant temperature, fuel gauge). Driver Assistance Assistance Features: N/A (No electronic rider aids like ABS or traction control). Engine Management Engine Control Unit: Electronic Control Unit (ECU) manages fuel injection and ignition timing. Manual provides diagnostic information for ECU and related sensors. 🔧 Maintenance Service Intervals Oil Change Interval: Recommended every 3,000-5,000 km or annually, with specific advice in the manual. Spark Plug Replacement: Refer to manual for recommended interval, typically around 10,000-15,000 km for 2-stroke applications. Chain Maintenance: Regular cleaning, lubrication, and tension adjustment recommended at intervals of 500-1000 km. Fluid Specifications Brake Fluid: DOT 4 recommended (refer to manual for precise specification). Coolant Type: Ethylene glycol-based antifreeze with corrosion inhibitors (refer to manual for specific type). Known Issues Common Problems: Potential for power valve issues, ignition coil failures, and general wear on a high-performance 2-stroke engine. The manual will detail diagnostic procedures for these. Maintenance Importance: Crucial for maintaining the high-revving 2-stroke engine's performance and longevity. Regular checks of the 2-stroke oil system are vital. 📚 Vehicle History Brand Heritage Heritage: Aprilia is an Italian manufacturer with a strong...