🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 2001 Vehicle Type: Sportbike Motorcycle Codes Engine Code Prefix: Rotax 122 Vin Code Letter: Z 👋 Introduction Market Position Historical Significance: The Aprilia RS 125 was a highly regarded lightweight sportbike, known for its aggressive styling, nimble handling, and potent two-stroke performance, often considered a gateway to supersport riding. Target Market: Primarily aimed at younger riders, enthusiasts seeking track-day performance in a smaller displacement package, and those appreciating Italian design and engineering. Competitive Analysis Key Competitors: Honda CBR125R, Yamaha YZF-R125, Suzuki GSX-R125 (in later years), Cagiva Mito 125 Key Features Design Philosophy: Emphasizes lightweight construction, aerodynamic efficiency, and a sporty riding posture characteristic of larger sportbikes. Performance Focus: High-revving two-stroke engine coupled with a capable chassis and suspension for exhilarating performance. Manual Utility: Provides in-depth technical guidance crucial for maintaining the performance and longevity of this high-strung two-stroke motorcycle. 📋 Manual Details Coverage Areas Manual Type: Repair Service Manual Language: English Format: PDF Download Target Audience: Professional Technicians, Advanced DIYers Availability: Instant Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, top-end rebuild, bottom-end assembly, carburetor tuning, cooling system, lubrication system, exhaust system Transmission: Gearbox disassembly, clutch service, shift mechanism, gear ratio identification Fuel System: Carburetor (Dell'Orto PHBH 28 VD) overhaul and adjustment, fuel pump, fuel lines, fuel tank maintenance Electrical System: Wiring diagrams, ignition system (CDI, spark plug), lighting, charging system (stator, regulator/rectifier), battery service, starter motor Brakes: Front and rear brake caliper service, master cylinder overhaul, brake pad replacement, brake fluid bleeding, rotor inspection Suspension: Front telescopic forks (Marzocchi) service, rear shock absorber (Monoshock) service, spring rates, damping adjustments Chassis: Frame inspection, steering head bearing service, swingarm service, wheel bearing replacement Bodywork: Fairing removal and installation, seat, fuel tank, fender service Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements, chain adjustment, spark plug inspection/replacement Troubleshooting: Diagnostic charts for common performance issues, starting problems, electrical faults Repair: Step-by-step repair instructions for all major systems, component replacement procedures Rebuild: Complete engine and gearbox rebuild procedures, including torque specifications and clearances Adjustment: Carburetor jetting, idle speed, ignition timing (if applicable), suspension settings Technical Depth Diagnostic Capabilities: Detailed symptom-to-cause analysis, electrical troubleshooting flowcharts Component Specifications: Dimensional tolerances, wear limits, material specifications for critical engine components Torque Specifications: Comprehensive list of torque values for all fasteners, including critical engine and chassis bolts Wiring Diagrams: Full-color, detailed electrical schematics for all circuits 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Searchability: Fully searchable text for quick information retrieval Print Quality Resolution: High-resolution, suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Completeness Completeness: Comprehensive coverage for the specified model year ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder Engine Displacement: 124.8 cc (7.6 cu in) Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 8.1:1 (for common configurations, subject to tuning) Valvetrain: Rotary disc valve induction Power Output: Approximately 31 hp (23 kW) at 11,000 rpm (may vary by market and specific tuning) Torque: Approximately 1.9 kgf·m (18.6 Nm; 13.7 lb·ft) at 10,000 rpm (may vary) Performance Top Speed: Approximately 160 km/h (99 mph) 0-60 Mph: Approximately 6-7 seconds Fuel System Carburetor Model: Dell'Orto PHBH 28 VD Fuel Type: Unleaded gasoline, minimum 95 RON (recommended) Fuel Delivery: Gravity feed with a small fuel pump Lubrication Oil System: Automatic oil injection (separate oil tank) Oil Type Recommendation: High-quality 2-stroke synthetic oil (e.g., Motul 710 2T, Castrol TTS) Cooling System Cooling Medium: Water/Glycol mixture Coolant Capacity: Approx. 1.2 Liters 🔧 Transmission Standard Transmission Type: 6-speed constant mesh, sequential manual Features Clutch Type: Wet multi-plate clutch, cable operated Gear Ratios: Specific ratios documented within the manual (e.g., 1st: 11/34, 2nd: 13/28, 3rd: 15/26, 4th: 17/24, 5th: 19/23, 6th: 21/22) Final Drive: Chain drive (e.g., 16T front, 42T rear sprocket) Transmission Oil Type: SAE 75W/90 or SAE 10W/40 motorcycle gear oil (refer to manual for exact specification and API rating) Transmission Oil Capacity: Approx. 0.8 Liters 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 710 mm (at handlebars) Height: Approx. 1060 mm (at seat) Wheelbase: Approx. 1345 mm Ground Clearance: Approx. 130 mm Weights Dry Weight: Approx. 131 kg Wet Weight: Approx. 145 kg (fully fueled and with fluids) Fuel Capacity: Approx. 13 Liters (including 3-liter reserve) Seat Height: Approx. 810 mm 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety ratings differ from automotive; focus is on mechanical integrity and rider input) Active Features Braking System: Front: 320mm single disc with 4-piston caliper; Rear: 220mm single disc with 2-piston caliper Suspension Features: Adjustable front forks (preload) and rear monoshock (preload, rebound damping) for optimized handling and stability. Passive Features Lighting: Halogen headlamp, LED tail light, turn signals Frame Construction: Aluminum twin-spar perimeter frame, offering high rigidity and low weight. Tires: Front:...