🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2001 Market Segment: Sportbike / Supersport Codes Vin Code Digit 4: Variable based on specific model variant Vin Code Digit 10: Variable based on specific model variant 👋 Introduction Market Position Positioning: The Aprilia RS125 (2001) was positioned as a premium 125cc sportbike, offering a balance of performance, styling, and handling that rivaled larger displacement motorcycles. Target Audience: Enthusiasts seeking a lightweight, agile, and stylish motorcycle with a potent two-stroke engine experience, often used for recreational riding and track days. Competitive Analysis Competitors: Yamaha YZF-R125, Honda CBR125R, Suzuki GSX-R125 (depending on market availability and year). Key Differentiation: Distinctive Italian styling, advanced chassis components for its class, and a high-revving, performance-oriented two-stroke engine. Often praised for its handling characteristics. Key Features Styling: Aggressive supersport styling, inspired by larger Aprilia RSV Mille models, featuring aerodynamic fairings and a sporty riding position. Engine Performance: Known for its strong mid-range and top-end power delivery characteristic of a well-tuned two-stroke engine. Chassis Geometry: Designed for agile handling and stability, featuring a robust frame and quality suspension components. Braking Performance: Dual front disc brakes provided strong stopping power, contributing to its sporty appeal. 📋 Manual Details Coverage Areas Engine Mechanical: Complete Fuel System: Complete Ignition System: Complete Cooling System: Complete Exhaust System: Complete Transmission Clutch: Complete Frame Chassis: Complete Suspension Front: Complete Suspension Rear: Complete Brakes Hydraulic: Complete Electrical System: Complete Bodywork Fairings: Complete Troubleshooting: Extensive Wiring Diagrams: Included Page Count Estimated Pages: Hundreds (specific count not provided, but implies comprehensive) Manual Type Type: Factory Service Repair Manual Language Language: English (presumed, typical for factory manuals of this era and origin) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Type: Rotax 122 two-stroke, liquid-cooled, single-cylinder Carburetor System: Dell'Orto PHBH 28 (typical for this model) Exhaust Power Valve: Detailed description of operation and maintenance Ignition System Type: Electronic ignition (CDI) Clutch Type: Wet multi-plate clutch Gearbox Type: 6-speed sequential Front Fork Type: Upside-down telescopic fork (e.g., Marzocchi or Paioli) Rear Shock ABSorber: Monoshock with adjustable preload and damping Brake System Front: Dual disc brakes with hydraulic calipers Brake System Rear: Single disc brake with hydraulic caliper Electrical Components: Starter motor, battery, lighting, instrumentation, indicators Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, spark plug service Engine Rebuild: Top-end (cylinder, piston, rings) and bottom-end (crankshaft, bearings) overhaul Carburetor Adjustment: Tuning, cleaning, and rebuilding instructions Suspension Service: Fork seal replacement, oil changes, shock absorber servicing Brake System Maintenance: Bleeding, pad replacement, caliper servicing Electrical Troubleshooting: Fault finding for ignition, charging, and lighting systems Wheel Tire Service: Tire mounting, wheel balancing, spoke tensioning Cooling System Service: Flushing, coolant replacement, leak testing Frame Inspections: Checking for damage, alignment Technical Depth Depth: Comprehensive: From basic maintenance and troubleshooting to full engine rebuilds and chassis component overhauls. Diagnostic Capabilities: Includes detailed symptom-based troubleshooting guides and diagnostic procedures. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable PDF, enabling quick information retrieval. Print Quality Quality: High resolution, suitable for printing individual sections or the entire manual. Binding Type Binding Type: N/A (Digital Download PDF) Paper Type Paper Type: N/A (Digital Download PDF) ⚙️ Engine Specifications Primary Engine Engine Code: Rotax 122 Engine Type: Liquid-cooled, two-stroke, single-cylinder Bore X Stroke: 54 mm x 54.5 mm (approximate) Displacement: 124.8 cc Compression Ratio: Approx. 12.4:1 (varies with variant) Cylinder Head: Aluminum alloy with hemispherical combustion chamber Lubrication System: Pre-mix or separate oil injection system (oil pump driven by crankshaft) Performance Horsepower Peak: Approx. 30-34 HP @ 10,500 RPM (factory restricted versions may be lower, e.g., 15 HP for A2 license) Torque Peak: Approx. 17-19 Nm @ 9,500 RPM Fuel System Carburetor Model: Dell'Orto PHBH 28 AS (or similar) Fuel Type: Unleaded gasoline (minimum 95 RON recommended) Fuel Tank Capacity: Approx. 11.5 liters (including reserve) Fuel Delivery: Gravity feed from fuel tank to carburetor Oil Tank Capacity: Approx. 1.0 liter (for separate oil injection) 🔧 Transmission Standard Transmission Type: 6-speed sequential constant mesh gearbox Clutch Type: Wet multi-plate clutch, cable operated Final Drive: O-ring sealed chain, 520 pitch Features Gear Ratios: Specific ratios would be detailed in the manual, but typically optimized for sport riding. Transmission Oil Type: API GL-4 or GL-5, SAE 75W/90 or 80W/90 gear oil Transmission Oil Capacity: Approx. 0.75 liters 📐 Dimensions Exterior Length: Approx. 1,950 mm Width: Approx. 700 mm Height: Approx. 1,100 mm Wheelbase: Approx. 1,345 mm Weights Dry Weight: Approx. 135 kg Wet Weight: Approx. 145-150 kg (with fluids) Load Capacity: Typically for single rider plus minimal luggage. 🛡️ Safety Features Ratings Safety Ratings: Motorcycles of this era do not typically have standardized crash test ratings like cars. Safety is assessed through engineering and component quality. Active Features Braking System: Dual front disc brakes with performance calipers provide excellent stopping power. Handling: Designed for stable cornering and...