🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1997 Engine Type: 2-stroke V-twin Codes Vin Decoder Start Year: 1997 👋 Introduction Market Position Market Segment: High-performance sportbike, homologation special for racing. Competitive Analysis Competitors: Yamaha YZF-R6, Suzuki GSX-R600, Kawasaki Ninja ZX-6R, Honda CBR600F3. Key Features Distinguishing Features: Derived from Suzuki RGV250 Gamma V-twin engine, lightweight chassis, aggressive styling, excellent handling. Target Audience Audience: Enthusiast owners, mechanics, restorers seeking detailed technical information. 📋 Manual Details Coverage Areas General Coverage: All Models/Engines/Trim/Transmission Page Count Estimated Pages: Approximately 300-400 pages (typical for this era's workshop manuals) Manual Type Type: Workshop Repair Service Manual Language Language: English (standard for Aprilia service documentation) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine disassembly, assembly, tuning, diagnostics, power valve operation, cooling system. Transmission: Gearbox operation, clutch service, shifting mechanisms, lubrication. Fuel System: Carburetor tuning (Dell'Orto PHBH 28), fuel lines, fuel pump, fuel tank maintenance. Electrical System: Ignition system, wiring diagrams, lighting, battery, charging system, starter motor. Suspension: Front fork (Showa upside-down) service, rear shock absorber (Ohlins optional) adjustment and overhaul. Brakes: Front and rear brake caliper service, master cylinders, brake lines, fluid replacement, bleeding procedures. Chassis And Frame: Frame inspection, swingarm maintenance, steering head bearing service. Exhaust System: Expansion chamber maintenance, silencer packing replacement. Bodywork And Fairings: Fairing removal and installation, seat, fuel tank mounting. Procedures Included Routine Maintenance: Oil changes, chain adjustment, filter replacement, spark plug service, general inspection. Troubleshooting: Diagnostic guides for common issues, performance problems, electrical faults. Engine Overhaul: Complete engine teardown, piston and cylinder reconditioning, crankshaft service, gasket replacement. Suspension Rebuild: Fork seal replacement, damper rod service, shock absorber rebuild. Brake System Service: Brake pad replacement, caliper piston service, bleeding procedures. Carburetor Rebuild: Jetting adjustments, float level setting, component replacement. Technical Depth Depth: Comprehensive, from basic maintenance to full engine and chassis rebuilds, including electrical diagnostics. 📊 Manual Specifications File Format File Type: PDF Print Quality Quality: High-resolution scans of original manual pages, ensuring clarity of text and diagrams. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download - accessible on any digital device) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, 90-degree V-twin Displacement: 249 cc (249.2 cc) Bore X Stroke: 54.0 mm x 54.5 mm Compression Ratio: 7.5:1 (variable with exhaust tuning) Power Valve System: Suzuki ATAC (Automatic Tone Select Exhaust Control) or similar electronic power valve system. Performance Horsepower: Approximately 65-70 hp @ 11,000 rpm (at crank) Torque: Approximately 30-32 lb-ft @ 10,000 rpm (at crank) Fuel System Carburetors: 2 x Dell'Orto PHBH 28 Fuel Type: Unleaded gasoline (min 95 RON) with 2-stroke oil pre-mix or separate oil injection system. Ignition Ignition System: CDI (Capacitor Discharge Ignition) Cooling Cooling System: Liquid-cooled 🔧 Transmission Standard Type: 6-speed constant mesh sequential gearbox Optional Features: Close-ratio gear sets (often in racing variants) Features Clutch: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1990 mm (78.3 in) Width: Approx. 720 mm (28.3 in) Height: Approx. 1150 mm (45.3 in) Wheelbase: Approx. 1365 mm (53.7 in) Weights Dry Weight: Approx. 140 kg (309 lbs) Wet Weight: Approx. 158 kg (348 lbs) Fuel Capacity: 16 liters (4.2 US gallons) 🛡️ Safety Features Ratings Crash Test Data: N/A (Motorcycle safety ratings differ from automobiles and are typically not standardized in the same way.) Active Features Braking System: Dual front disc brakes with 4-piston calipers (e.g., Nissin), single rear disc brake. Tire Sizes: Front: 120/70-ZR17, Rear: 160/60-ZR17 (common fitments, check manual for exact specs). Passive Features Lighting: Dual Halogen headlights, LED tail light. 💡 Technology Features Infotainment Features: N/A (Focus is on pure performance, no modern infotainment systems). Driver Assistance Features: N/A (No electronic rider aids found on this model). 🔧 Maintenance Service Intervals Oil Change Engine: Every 3,000-5,000 km or annually (check manual for exact interval and oil type). Spark Plug Service: Every 4,000-6,000 km (NGK CR9E or similar, check manual for specific part number and gap). Chain And Sprockets: Regular cleaning and lubrication (e.g., every 500 km or after wet riding). Sprocket replacement based on wear. Brake Fluid: Replace every 2 years or as per manual recommendation (DOT 4 recommended). Coolant Flush: Every 2 years (use a quality ethylene glycol-based coolant). Fluid Specifications Engine Oil Type: High-quality 2-stroke premix oil or recommended 2-stroke injector oil (e.g., Motul 800, Castrol TTS). Transmission Oil Type: API GL-4 SAE 75W-90 or 80W-90 hypoid gear oil. Capacity: Approx. 0.7-0.8 liters. Brake Fluid Type: DOT 4 Coolant Type: Mixture of distilled water and ethylene glycol (50/50 ratio). Known Issues Engine Wear: 2-stroke engines, especially when pushed hard, can experience piston ring and cylinder wear. Regular top-end rebuilds are common for high-mileage or frequently tracked bikes. Power Valve Sticking: Carbon buildup can cause power valves to stick, affecting performance. Regular cleaning is necessary. Carburetor Issues: Dell'Orto carbs can...