🏷️ Basic Information Identification Make: Aprilia Model: RS250 Year: 1998 Engine Code: 945W Codes Product Code: RS250-98-SRM-PDF 👋 Introduction Market Position Segment: High-performance sportbike, known for its 500cc 2-stroke V-twin engine derived from Suzuki RG500 components. Competitors: Yamaha YZF-R6, Honda CBR600F, Kawasaki Ninja ZX-6R, Ducati 748. Key Features Engine Type: Liquid-cooled, 497cc, 70-degree V-twin, 2-stroke, reed valve (rotary disc valve induction). Performance Highlights: Renowned for its potent power delivery and aggressive character, making it a favorite among track enthusiasts and performance riders. Manual Value Proposition Benefit: Essential resource for maintaining, troubleshooting, and repairing the Aprilia RS250, ensuring optimal performance and longevity. 📋 Manual Details Coverage Areas Systems Covered: Engine, Drivetrain, Chassis, Suspension, Brakes, Electrical System, Fuel System, Cooling System, Lubrication System, Exhaust System, Bodywork, Troubleshooting, Maintenance Page Count Pages: Approx. 300+ Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Detailed breakdown of the 2-stroke V-twin engine, including cylinder head, cylinders, pistons, connecting rods, crankshaft, seals, and gaskets. Specific attention to the rotary disc valve induction system. Drivetrain: Clutch operation, gearbox disassembly and assembly, gear ratios, chain and sprockets, lubrication. Chassis Suspension: Frame, swingarm, fork assembly (including internal components, seals, and oil changes), rear shock absorber, steering head bearings. Brakes: Front and rear brake systems, including caliper overhaul, master cylinder, brake lines, fluid replacement, and bleeding procedures. Details on the Brembo braking components. Electrical System: Wiring diagrams, lighting system, ignition system, battery, charging system (stator, regulator/rectifier), starter motor, instrument cluster. Fuel System: Carburetor (Mikuni TM34SS) disassembly, cleaning, adjustment, jetting information, fuel pump operation, fuel lines, and fuel tank. Cooling System: Radiator, cooling fan, water pump, coolant specifications and replacement. Lubrication System: 2-stroke oil injection system, oil pump calibration, reservoir, and oil specifications. Exhaust System: Expansion chambers, silencer, gasket replacement, and carbon buildup cleaning. Bodywork: Fairing removal and installation, seat, fuel tank, minor body panel repairs. Procedures Included Maintenance: Routine checks, oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, brake fluid flush, coolant replacement. Troubleshooting: Diagnostic procedures for common problems such as starting issues, misfires, electrical faults, and braking performance. Repair: Step-by-step instructions for component disassembly, repair, reassembly, and adjustment across all major systems. Specifications: Torque specifications for critical fasteners, engine tolerances, electrical resistance values, and fluid capacities. Technical Depth Depth: Comprehensive, covering basic maintenance to complete engine rebuilds and electrical system diagnostics. Suitable for both novice and experienced mechanics. 📊 Manual Specifications File Format File Type: Digital (PDF) Searchability: Searchable text for quick information retrieval. Print Quality: High-resolution scanned pages, ensuring clear diagrams and text. Print Quality Illustration Quality: Includes clear line drawings, exploded views, and technical illustrations. Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 70° V-twin, 2-stroke Displacement: 497 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 7.1:1 Valve Mechanism: Rotary disc valve induction for each cylinder Cooling System: Liquid cooling with fan assist Performance Horsepower: 70 hp @ 9,000 rpm (approx.) Torque: 5.2 kgm @ 8,000 rpm (approx.) Fuel System Carburetors: 2 x Mikuni TM34SS flat-slide carburetors Fuel Delivery: 2-stroke oil injection system for pre-mixing oil with fuel. Lubrication System Oil Type: High-quality 2-stroke motorcycle oil, as specified in the manual. 🔧 Transmission Standard Type: 6-speed, constant mesh, sequential manual Features Clutch: Wet, multi-plate clutch with hydraulic actuation. Final Drive: Chain drive 📐 Dimensions Exterior Length: 2010 mm (approx.) Width: 680 mm (approx.) Height: 1145 mm (approx.) Weights Dry Weight: 142 kg (approx.) Fuel Capacity: 16 Liters (approx.) 🛡️ Safety Features Active Features Brakes: Dual front disc brakes with Brembo calipers, single rear disc brake with Brembo caliper. Suspension: Adjustable front telescopic forks and rear monoshock suspension for stability and control. Passive Features Frame Type: Aluminum twin-spar frame for rigidity and lightweight construction. 💡 Technology Features Infotainment Features: Basic analog instrument cluster including speedometer, tachometer, coolant temperature gauge, and indicator lights. No advanced infotainment systems. Driver Assistance Features: No electronic driver assistance systems. Relies on rider skill and mechanical performance. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific intervals based on usage. Typically every 3,000-5,000 km. Spark Plug Replacement: Refer to manual, typically every 5,000-8,000 km. Chain Maintenance: Lubricate and adjust chain every 500-1000 km, or as needed. Fluid Specifications Coolant: Ethylene glycol-based antifreeze mixture (50/50) with distilled water. Capacity: Approx. 1.5 Liters. Brake Fluid: DOT 4 brake fluid. Fork Oil: Refer to manual for viscosity and quantity. Typically SAE 10W or 15W. Capacity: Approx. 480cc per fork leg. 2 Stroke Oil: High-quality synthetic 2-stroke motorcycle oil, specifically formulated for high-performance engines with oil injection systems. Refer to manual for recommended brands and specifications. Known Issues Common Problems: Potential for crankshaft seal failure, carburetor jetting issues at altitude, overheating in stop-and-go traffic, and wear on the...