🏷️ Basic Information Identification Make: Aprilia Model: RS125 Years Covered: 1993-2002 Codes Manual Product Code: N/A (provided as product name) Vehicle Chassis Codes: RT (early models), AP0 (later models - indicative) 👋 Introduction Market Position Category: Lightweight Sportbike / Two-Stroke Performance Target Audience: Enthusiasts, DIY mechanics, performance tuners, and owners seeking in-depth maintenance and repair knowledge. Competitive Analysis Segment: Competed with other 125cc sportbikes of its era, known for its sharp handling and potent two-stroke engine. Differentiation: Often lauded for its race-replica styling and aggressive performance characteristics for its displacement. Key Features Manual Value Proposition: Vehicle-specific, technician-level information for comprehensive DIY maintenance and repair, covering all models and repairs A-Z. Vehicle Appeal: The RS125 is a highly regarded 125cc two-stroke sportbike known for its potent engine and agile chassis, making it a popular choice for young riders and track enthusiasts. 📋 Manual Details Coverage Areas Primary Coverage: Full Service Repair Workshop Manual Model Coverage: All RS125 Models (1993-2002) Repair Scope: A-Z Repairs Page Count Estimated Page Count: 300-500 pages (typical for this era and scope) Manual Type Type: Service and Repair Workshop Manual Language Language: English Format Format: Digital Download (PDF implied) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, top-end rebuild (cylinder, piston, head), bottom-end rebuild (crankshaft, connecting rod, bearings), lubrication system, cooling system (radiator, water pump, thermostat), fuel system (carburetor tuning, jetting, fuel lines), ignition system (CDI, spark plug, coil), exhaust system. Transmission: Gearbox disassembly and reassembly, clutch inspection and replacement, gear selection mechanism, shift drum and forks, transmission bearings and seals. Chassis And Frame: Frame inspection, steering head bearing replacement, swingarm maintenance, rear shock absorber adjustment and overhaul, front fork overhaul (oil change, seal replacement). Brakes: Front and rear brake caliper overhaul, brake pad replacement, brake disc inspection, brake line bleeding, master cylinder service. Electrical System: Wiring diagrams for all models, lighting system, battery, starter motor, charging system (alternator, regulator/rectifier), instrumentation, switches, fuses. Bodywork And Fairings: Fairing removal and installation, seat, fuel tank, fenders, graphics, general bodywork repair. Procedures Included Maintenance: Scheduled maintenance tasks, oil changes, filter replacements, chain adjustment, spark plug checks, coolant checks, brake fluid changes, carburetor cleaning. Diagnostics: Troubleshooting guides for common issues, fault diagnosis for engine performance, electrical problems, and braking system issues. Repair: Step-by-step repair procedures for all major components and systems, including detailed disassembly and reassembly instructions. Special Tools: Identification and usage of specific tools required for certain repairs and adjustments. Technical Depth Depth: Comprehensive (from basic maintenance to complete engine rebuilds and advanced diagnostics). Diagnostic Procedures: Detailed diagnostic trees and symptom-based troubleshooting. Specification Tables: Extensive tables of torque values, clearances, fluid capacities, and electrical resistance. 📊 Manual Specifications File Format Format: PDF (common for digital downloads) Searchability: Likely text-searchable PDF (standard for reputable manuals) Print Quality Quality: High-resolution scans or original digital files ensuring clear diagrams and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder Displacement: 124.8 cc Bore X Stroke: 54 mm x 54.5 mm (typical) Compression Ratio: Approx. 8.4:1 to 11.5:1 (depending on variant and tuning) Power Delivery: Typically features an aggressive powerband characteristic of performance two-strokes, often with a powervalve system. Performance Horsepower Output: Approx. 31-34 HP (at crankshaft, depending on market and specific tune) Torque Output: Approx. 20-22 Nm (at crankshaft) Fuel System Carburetion: Dell'Orto PHBH 28, PHBH 30, or VHSD 34 (depending on year and market) with electronic oil injection (Autolube). Fuel Type: Unleaded gasoline (95 RON recommended), premixed with 2-stroke oil (or via autolube system). Ignition System Ignition Type: Digital CDI (Capacitor Discharge Ignition) Cooling System Type: Liquid-cooled Lubrication System: Autolube (separate oil tank and pump) or pre-mix, depending on model variant and year. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Optional Optional Gearbox: N/A (standard 6-speed) Features Clutch Type: Wet, multi-plate, cable-operated Final Drive: Chain drive Gear Ratios Ratios: Specific gear ratios will be detailed in the manual, crucial for performance tuning. Fluid Specifications Transmission Oil: Refer to manual for specific API GL-4 or GL-5, SAE 80W/90 gear oil (or specific Aprilia recommendation). 📐 Dimensions Exterior Length: Approx. 1945 mm (varies slightly by year) Width: Approx. 700 mm (at handlebars) Height: Approx. 1135 mm (at handlebars) Wheelbase: Approx. 1345 mm Weights Dry Weight: Approx. 132 kg Wet Weight: Approx. 145 kg (with fluids) Fuel Tank Capacity: Approx. 12 Liters (including 2-liter reserve) Wheels And Tires Front Tire Size: 110/70-17 (common) Rear Tire Size: 150/60-17 (common) Wheel Type: Alloy wheels Wheelbase Material: Aluminum alloy 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle safety ratings not standardized in the same way as cars). Active Features Braking System: Hydraulic disc brakes front and rear. Typically a dual-piston caliper front and single-piston rear. Lighting: Halogen headlight, taillight, turn signals. Passive Features Chassis Design: Steel twin-spar frame, providing rigidity and handling....