🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1997 Engine Type: Two-stroke V-twin Codes Internal Code: RS250_97_FSM 👋 Introduction Market Position Positioning: High-performance sportbike, direct competitor to Yamaha RZ350 and Suzuki RGV250 Target Audience: Enthusiasts seeking to maintain and repair a classic, high-performance two-stroke motorcycle Competitive Analysis Historical Competitors: Yamaha RZ350, Suzuki RGV250, Honda NSR250 Key Features Unique Selling Points: Renowned for its potent two-stroke engine, sharp handling, and race-bred aesthetics derived from Aprilia's Grand Prix racing heritage. 📋 Manual Details Coverage Areas Primary Coverage: Mechanical and electrical systems, troubleshooting, repair, maintenance Secondary Coverage: Specifications, diagrams, exploded views, special tools Page Count Estimated Pages: 300+ Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnosis, tuning, cooling system, lubrication system Fuel System: Carburetor assembly and adjustment (Mikuni T-M34SS), fuel tank, fuel pump Ignition System: CDI, ignition timing, spark plugs, coils Transmission: Clutch operation and adjustment, gearbox overhaul, gear ratios, shift mechanism Brakes: Front and rear brake systems, caliper overhaul, master cylinder, brake fluid specifications, bleeding procedures Suspension: Front telescopic forks (Showa), rear monoshock (Progressive Suspension), preload, compression, rebound adjustments Electrical System: Wiring diagrams, lighting, battery, charging system, starter motor, instrument cluster Chassis Bodywork: Frame, swingarm, fairings, seat, controls, exhaust system Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, lubrication points, spark plug replacement Troubleshooting: Diagnostic flowcharts for common issues, electrical faults, engine performance problems Repair Overhaul: Complete engine rebuild, gearbox replacement, suspension fork service, brake caliper rebuild Adjustment Tuning: Carburetor jetting and synchronization, ignition timing, suspension settings Technical Depth Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts Detail Level: Detailed step-by-step instructions, torque specifications, clearances, diagnostic codes 📊 Manual Specifications File Format Digital Format: PDF Searchable: Yes (if original digital format is searchable) Print Quality Image Resolution: High-resolution scans suitable for printing Binding Type Physical Binding: N/A (Digital Format) Paper Type Physical Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Configuration: 90-degree V-twin, liquid-cooled, two-stroke Displacement: 249 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.1:1 (stated, often tunable) Induction: Reed valve induction with dual Mikuni T-M34SS carburetors Power Output: Approximately 70 hp @ 11,000 rpm (manufacturer claim, often higher in stock form) Torque Output: Approximately 39 Nm @ 10,000 rpm Performance Top Speed: Over 220 km/h (137 mph) Fuel System Fuel Type: Unleaded gasoline (minimum 95 RON) mixed with 2-stroke oil Oil Mixture Ratio: 1:25 or 1:30 (recommended, may vary based on oil quality) 🔧 Transmission Standard Type: 6-speed constant mesh, sequential Features Clutch Type: Wet multi-plate, cable-actuated Gear Ratios: Specific ratios available in manual (e.g., 1st: 2.500, 2nd: 1.765, 3rd: 1.333, 4th: 1.143, 5th: 1.000, 6th: 0.917) 📐 Dimensions Exterior Length: 2010 mm (approx.) Width: 710 mm (approx.) Height: 1140 mm (approx.) Wheelbase: 1370 mm (approx.) Weights Dry Weight: 141 kg Wet Weight: 156 kg (approx.) Fuel Tank Capacity: 16 liters 🛡️ Safety Features Ratings Crash Safety Rating: Not applicable (motorcycle) Active Features Braking System: Dual front discs (310 mm) with 4-piston calipers, single rear disc (220 mm) with 2-piston caliper Suspension Characteristics: Performance-oriented, adjustable for rider preference and track conditions Passive Features Lighting: Dual halogen headlights, LED tail light 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer, tachometer, coolant temperature gauge, fuel level warning light, neutral indicator, turn signal indicators. Driver Assistance Electronic Aids: None (basic analog controls and mechanical systems) Connectivity Connectivity Features: None (mechanical and electrical systems only) 🔧 Maintenance Service Intervals Oil Change Recommendation: Every 3,000-5,000 km or annually, check manual for precise intervals Spark Plug Replacement: As per manual, typically every 5,000-10,000 km depending on type (e.g., NGK BR9EG) Chain Adjustment: Every 1,000 km or as needed based on slack Fluid Specifications Engine Oil Type: High-quality 2-stroke premix oil (e.g., Motul 800 2T Factory Line, Castrol TTS) Transmission Oil Type: API GL-4, SAE 80W-90 gear oil (capacity: approx. 0.8 liters) Brake Fluid Type: DOT 4 Coolant Type: Ethylene glycol-based antifreeze/coolant (50/50 mix with distilled water) Known Issues Common Problems: Carburetor wear (especially throttle slides), sticky power valves, crank seals, ignition coil failures, swingarm bearing wear. Maintenance Emphasis: Proper pre-mix ratio, regular cleaning of power valves, and timely gearbox oil changes are critical for longevity. 📚 Vehicle History Brand Heritage Motorsport Connection: Aprilia has a rich history in Grand Prix motorcycle racing, leveraging this expertise in their production bikes. Model Evolution Genesis: The RS250 was developed using components and technology from the successful Suzuki RGV250 Gamma, licensed by Aprilia. Key Variants: Early models and later versions with minor updates, often differing in graphics and suspension components. Production Production Period: 1995-2004 (significant models produced during this timeframe, including the 1997 model) Manufacturing Location: Italy 🏆 Awards & Recognition Recognitions Performance Acclaim: Widely praised in period reviews for its exhilarating performance...