🏷️ Basic Information Identification Make: Aprilia Model: RS250 Product Name: Aprilia RS250 Service Repair Manual 1994-1998 Codes Engine Code Variant: Rotax 250 V-Twin (derived from Suzuki RG250 Gamma) Chassis Codes Variants: RS250 MK1 (94-97), RS250 NIKY (98) 👋 Introduction Market Position Motorcycle Segment: Lightweight two-stroke supersport Target Audience: Enthusiasts, track day riders, mechanics Competitive Analysis Key Competitors: Yamaha YZF-R6, Honda CBR600F, Suzuki GSX-R600 (though RS250 is 2-stroke, it competed in the sporty 250-400cc class) Key Features Performance Focus: High-revving two-stroke engine, sharp handling, racing heritage Historical Significance: Carried Aprilia's racing DNA into a production streetbike, built around a potent Rotax engine 📋 Manual Details Coverage Areas Coverage Years: 1994, 1995, 1996, 1997, 1998 Market Coverage: Global (primarily European and North American specifications) Page Count Estimated Pages: 300-500 (estimated, specific page count not provided in product info) Manual Type Manual Type: Service Repair Manual Language Language: English (assumed, common for international service manuals) Format Format: Electronic (PDF) 📖 Manual Coverage Systems Covered Engine: 2-stroke V-twin, cooling system, lubrication, ignition, fuel delivery (carburetors), exhaust system, top-end rebuild, bottom-end rebuild Transmission: 6-speed gearbox, clutch operation and adjustment, gear selection mechanism, lubrication Chassis: Frame inspection and repair, steering head bearing service, swingarm and rear suspension linkage maintenance, wheel bearing replacement Suspension: Front fork overhaul (Öhlins USD forks on some variants), rear shock absorber service and adjustment, spring rate specifications Brakes: Front and rear brake system service, caliper overhaul, master cylinder rebuild, fluid replacement, bleeding procedures, disc and pad specifications Electrical: Wiring diagrams, lighting system, battery and charging system, starter motor, ignition system components, sensor identification and testing Fuel System: Carburetor tuning and synchronization (Mikuni TM34-1), fuel tank maintenance, petcock operation, fuel line inspection Bodywork: Fairing removal and installation, seat and tail section, fuel tank mounting, graphics and paint care Procedures Included Maintenance: Routine servicing, oil changes, filter replacements, chain adjustment, spark plug replacement, air filter cleaning/replacement Repair: Engine rebuild, transmission overhaul, suspension component replacement, brake system repair, electrical diagnostics and component replacement Troubleshooting: Diagnostic flowcharts for common starting issues, running problems, electrical faults, and performance degradation Tuning: Carburetor jetting and adjustments for altitude and exhaust modifications, ignition timing adjustments (if applicable) Technical Depth Depth: Comprehensive workshop level; covers basic maintenance to complete engine and chassis rebuilds Illustrations: High-quality diagrams and illustrations for all procedures Format Detail: Step-by-step instructions 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Likely text-searchable if properly OCR'd Print Quality Print Readability: Optimized for digital viewing and printing Binding Type Binding Type: N/A (Electronic Format) Paper Type Paper Type: N/A (Electronic Format) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 2-stroke, 90-degree V-twin Displacement: 249 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.5:1 (typical for high-performance 2-strokes) Power Output: Approx. 70-72 HP (at crankshaft, depending on market and tuning) Torque Output: Approx. 40-42 Nm (at crankshaft) Performance Redline: 11,500 RPM (approx.) Top Speed: Approx. 220 km/h (137 mph) Fuel System Carburetors: 2 x Mikuni TM34-1 Flat Slide Fuel Type: Unleaded gasoline, minimum 95 RON (octane rating is crucial for 2-strokes) Oil Injection: Automatic oil injection system (separate reservoir) Lubrication Crankcase: Wet sump (for gearbox and crank bearings) Cooling System Type: Liquid-cooled Coolant Type: Ethylene glycol-based coolant (e.g., Motul Motocool Expert, Castrol Radicool) Coolant Capacity: Approx. 1.5 liters Ignition Type: Digital CDI (Capacitor Discharge Ignition) Spark Plugs: NGK R7273-9 or equivalent (specific plug number vital) 🔧 Transmission Standard Type: 6-speed constant mesh Gear Ratios: 1st: 2.833 (34/12), 2nd: 2.056 (37/18), 3rd: 1.619 (34/21), 4th: 1.333 (32/24), 5th: 1.154 (30/26), 6th: 1.000 (28/28) Final Drive: Chain drive (520 pitch) Features Clutch Type: Wet multi-plate, cable-actuated Transmission Oil Type: API GL-4 SAE 75W/90 or 10W/40 motorcycle gear oil (check manual for precise specification) Transmission Oil Capacity: Approx. 0.8 - 1.0 liters 📐 Dimensions Exterior Length: Approx. 1960 mm Width: Approx. 720 mm Height: Approx. 1135 mm Wheelbase: Approx. 1375 mm Ground Clearance: Approx. 130 mm Weights Dry Weight: Approx. 140 kg Wet Weight: Approx. 155 kg (fully fueled) Fuel Tank Capacity: 16 liters Wheels Tires Front Wheel: 17 x 3.50 inch alloy Rear Wheel: 17 x 4.50 inch alloy Front Tire Size: 120/70ZR17 Rear Tire Size: 160/60ZR17 Wheelbase Measurement Standard: ISO 13884 🛡️ Safety Features Ratings Crash Test Ratings: N/A (Motorcycle safety standards vary greatly from automobiles; focus is on rider protection via design and equipment) Active Features Braking System: Dual front discs (320mm), single rear disc (240mm), dual-piston calipers (Brembo or equivalent) Suspension Geometry: Designed for stability and responsiveness Passive Features Lighting: Halogen headlight, LED taillight Chassis Design: Lightweight aluminum twin-spar frame 💡 Technology Features Infotainment Infotainment System: N/A (Focus is on performance and handling, not integrated electronics) Engine Management Electronic Controls: Digital CDI ignition, automatic oil injection. 🔧 Maintenance Service Intervals Oil Change Interval: Every 4,000-6,000 km or annually (check manual for specific recommendation)...