🏷️ Basic Information Identification Make: Aprilia Model: RS 250 Model Generation: MK1 / MK2 Model Years Covered: 1994-2008 Vehicle Type: Sportbike / Supersport Motorcycle Engine Configuration: V-Twin, 2-Stroke Codes Chassis Code Early: AP00 Chassis Code Late: AP02 👋 Introduction Market Position Heritage: A legendary two-stroke sportbike renowned for its performance and handling, inspired by Suzuki RGV-Gamma racing technology. Target Audience: Performance-oriented riders seeking authentic supersport experience, track day enthusiasts, and collectors of iconic 2-stroke machinery. Competitive Analysis Rivals: Yamaha YZF-R6, Honda CBR600RR (later models), Kawasaki ZX-6R, Suzuki GSX-R600. Key Features Engine Type: Parallel-Twin, liquid-cooled, 2-stroke, reed-valve induction. Power Delivery: Aggressive powerband typical of high-performance 2-strokes, producing exhilarating acceleration. Handling: Renowned for sharp and precise handling, contributing to its track prowess. Design: Sleek, aerodynamic, race-inspired fairings and dual underseat exhaust system. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: Downloadable PDF Intended User: Mechanics and knowledgeable DIY enthusiasts Page Count Estimated Pages: 500+ Section Breakdown: Comprehensive across all systems 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, tuning, rebuilding, lubrication system, cooling system Engine Management: Carburetion (Mikuni TM28), ignition system, exhaust system (dual underseat mufflers) Transmission: 6-speed gearbox, clutch operation and adjustment, chain drive maintenance Chassis And Frame: Frame inspection, steering head bearing maintenance, swingarm and linkage service Suspension: Front telescopic forks (Showa/Marzocchi), rear monoshock suspension (Sachs/Ohlins on some variants), adjustment and overhaul procedures Brakes: Front dual disc with Brembo calipers, rear single disc, brake fluid replacement, caliper service, master cylinder overhaul Electrical System: Wiring diagrams, lighting, battery service, starter motor, alternator, ignition coil troubleshooting Fuel System: Fuel tank removal, fuel lines, fuel tap operation Bodywork And Trim: Fairing removal and installation, seat, fuel tank panel, tail section, graphical elements Procedures Included Maintenance: Routine checks, lubrication, filter changes, spark plug replacement, chain adjustment Troubleshooting: Diagnostic charts for common problems, identifying causes and solutions Repair: Step-by-step instructions for component replacement and system repair Overhaul: Complete engine and transmission rebuilding procedures Specifications: Torque values, tolerances, clearances for all components Diagnostics: Fault finding for electrical and mechanical systems Technical Depth Level Of Detail: In-depth factory-level technical information Rebuild Procedures: Detailed engine and gearbox rebuilds with component breakdown Tuning Information: Carburetor jetting and ignition timing adjustments Diagnostic Trees: Systematic troubleshooting flowcharts 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text content Printability: Printable pages Print Quality Resolution: High-resolution images and diagrams Binding Type Physical Manual Binding: N/A (Digital Download) Paper Type Physical Manual Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, 90-degree V-twin, 2-stroke Displacement: 249 cc Bore X Stroke: 54 x 54.5 mm Compression Ratio: 7.5:1 Valvetrain: Reed valve induction Performance Horsepower Peak: Approx. 65 hp @ 11,000 rpm (varies slightly by market and year) Torque Peak: Approx. 40 Nm @ 10,500 rpm Fuel System Carburetors: 2 x Mikuni TM28SS, flat-slide Fuel Type: Unleaded gasoline (min. 95 RON), 2-stroke oil injection system Lubrication Oil Type: Fully synthetic 2-stroke oil (specific Aprilia recommendations apply) Cooling Cooling System: Liquid-cooled, pressurized, with fan assist Ignition Ignition System: Digital CDI 🔧 Transmission Standard Transmission Type: 6-speed, constant mesh Clutch Type: Wet, multi-plate Final Drive: Chain drive Features Gear Ratios: Specific ratios detailed in manual (e.g., 1st: 2.500, 2nd: 1.875, 3rd: 1.500, 4th: 1.273, 5th: 1.143, 6th: 1.042) Transmission Fluid: Manual specifies transmission oil type and capacity (typically light gear oil or specific ATF) 📐 Dimensions Exterior Length: Approx. 2,020 mm (varies by year) Width: Approx. 720 mm Height: Approx. 1,135 mm Wheelbase: Approx. 1,375 mm Weights Dry Weight: Approx. 141 kg Wet Weight: Approx. 158 kg Fuel Capacity: 16 Liters (including reserve) Wheels And Tires Front Tire Size: 120/70ZR17 Rear Tire Size: 160/60ZR17 Front Wheel Type: 3.50 x 17 Rear Wheel Type: 4.50 x 17 Bolt Pattern: 5x114.3 mm (common for Aprilia/Suzuki wheels) 🛡️ Safety Features Ratings Crash Test Results: N/A (Motorcycle safety ratings differ from automobiles) Active Features Braking System: Dual 320mm front discs with 4-piston Brembo calipers, 220mm rear disc with 2-piston caliper. Suspension Dynamics: Adjustable suspension aids in maintaining stability and control under varied conditions. Passive Features Frame Construction: Twin-spar aluminum frame for rigidity and stability. Lighting: Dual halogen headlights, LED taillight (later models). 💡 Technology Features Infotainment Dashboard: Analog tachometer, speedometer, odometer, trip meters, engine temperature gauge, neutral indicator, turn signal indicators. Driver Assistance ABS: Anti-lock Braking System (ABS) was not a standard feature on the RS 250. Connectivity Usb Port: N/A (No USB or advanced connectivity features). Performance Aids Suspension Adjustability: Preload, compression, and rebound damping adjustment on front forks and rear shock absorber (depending on variant). 🔧 Maintenance Service Intervals Oil Change Interval: As per manual recommendation, typically based on mileage or operational hours. For 2-stroke injection oil: monitor level, refill as needed. Spark Plug Replacement: Recommended every 3,000-5,000 km or as per manual. Use specified NGK spark...
Refer to manual for specific grade and type (e.g., SAE 75W/90 gear oil or specific ATF, check manual for capacity).
Coolant:
Ethylene glycol-based coolant with corrosion inhibitors, mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 recommended.
Known Issues
Cylinder Wear:
Common in high-mileage 2-strokes; manual details inspection and bore sizing.
Rotary Valve Wear:
Wear on the rotary intake valve mechanism can affect performance; manual covers inspection and replacement.
Electrical Connections:
Corrosion or loose connections can cause intermittent faults; manual provides wiring diagrams for troubleshooting.
Carburetor Synchronization:
Proper synchronization is crucial for smooth running; manual details the procedure.
Power Valve Actuation:
Failure or sluggishness of the exhaust power valve system can impact performance; manual covers its maintenance.
📚 Vehicle History
Brand Heritage
Aprilia Legacy:
Aprilia has a rich racing heritage, particularly in the Grand Prix circuit, with numerous championship titles in various classes, which heavily influenced the RS 250's development.
Model Evolution
Origins:
Developed with significant input and technology transfer from Suzuki's successful RGV250 Gamma racing motorcycles.
Mk1 Vs Mk2:
Distinguished by styling and minor chassis/engine updates. MK1 (1994-1997) and MK2 (1998-2003, with later updates and special editions extending to 2008 in some markets).
Special Editions:
Included 'Trophy' and 'Challenge' models with upgraded suspension and performance parts.
Production
Production Period:
1994 - 2003 (with ongoing sales and limited production in some regions until 2008).
Manufacturing Location:
Noale, Italy
🏆 Awards & Recognition
Recognitions
Motorcycle Press Reviews:
Consistently praised by motorcycle publications for its performance, handling, and distinctive 2-stroke character.
Class Performance:
Considered a benchmark for 250cc sportbikes during its production era.
Certifications
Emissions Compliance:
Compliant with emissions standards of its respective production years, details on tuning for compliance in manual.