🏷️ Basic Information Identification Make: Aprilia Model: RS125 Type: Sportbike Motorcycle Generation Model Years Covered: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Codes Engine Code: Rotax 122 (specified for 99-03 models) 👋 Introduction Market Position Positioning: A performance-oriented 125cc sportbike, popular in its segment for its race-inspired styling and agile handling. Competitive Analysis Competitors: Competed against other 125cc sportbikes from brands like Yamaha (TZR125), Honda (CBR125R), and Suzuki (RG125). Key Features Design: Sharp, aggressive styling reminiscent of larger Aprilia sportbikes, lightweight chassis, and sporty ergonomics. Engine Type: High-revving, two-stroke single-cylinder engine known for its lively performance in the 125cc class. Handling: Renowned for excellent handling characteristics, making it a favorite for track days and spirited riding. Manual Value Proposition Benefit To Owner: Empowers owners to perform maintenance, repairs, and diagnostics, saving money and ensuring the longevity of their RS125. Target Audience: DIY enthusiasts, home mechanics, and professional workshops. 📋 Manual Details Coverage Areas Primary Markets: Global (implied by download availability and customer locations mentioned) Page Count Estimated Pages: Not specified, but described as 'detailed' and potentially large (up to 4000 MB implies a very comprehensive document, likely several hundred pages when printed or rendered). Manual Type Type: Service Repair Manual, Factory Repair Manual, Component Catalog Language Language: Likely English (based on product description language), though not explicitly stated. Factory manuals can sometimes include multiple languages. Format Digital Format: PDF (downloadable, printable) File Types: PDF, ZIP, RAR, EXE (some files may be zipped for compression) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, including Rotax 122 engine specifics (99-03 models mentioned), internal components, lubrication, cooling, and exhaust. Transmission: Gearbox operation, maintenance, repair, and component breakdown. Fuel System: Carburetor tuning, fuel delivery, fuel tank, and associated lines. Ignition System: Ignition timing, spark plugs, CDI unit, and related components. Electrical System: Wiring diagrams, lighting, battery, charging system, starter, instrumentation, and switches. Brakes: Hydraulic brake system (front and rear), caliper service, master cylinder, brake lines, and pads. Suspension: Front fork service (including oil changes and seal replacement), rear shock absorber inspection and adjustment. Chassis And Frame: Frame inspection, steering head bearings, and general chassis components. Bodywork And Fairings: Removal, installation, and maintenance of body panels and fairings. Cooling System: Radiator, cooling fan, coolant types, and bleeding procedures. Exhaust System: Exhaust pipe and silencer maintenance and inspection. Procedures Included Maintenance: Routine servicing, oil changes, filter replacements, chain adjustment, spark plug checks, and general upkeep. Troubleshooting: Diagnosis of common problems, fault finding, and step-by-step solutions for immediate fixes. Repair: Detailed instructions for disassembling, repairing, and reassembling various vehicle components. Restoration: Guidance for bringing an older model back to its original specification. Rebuilding: Comprehensive procedures for engine and gearbox rebuilds. Diagnostics: Methods for identifying and resolving mechanical and electrical issues. Technical Depth Depth: Factory-level technical information, suitable for professional technicians and experienced DIY enthusiasts. Covers detailed component breakdowns and specifications. Illustrations: Illustrated with clear step-by-step instructions, zoomable illustrations, and exploded views. Component Breakdowns: Detailed component breakdowns, including part numbers and exploded views for all aspects of the motorcycle. 📊 Manual Specifications File Format Document Format: PDF Compatibility: Compatible with all operating systems (Windows, Linux, Mac) and PDF readers. Accessibility: Instant download, no physical shipping, accessible across multiple devices (computer, iPad, hard disk). Print Quality Printability: Printable on any computer and printer, no restrictions on printing. Binding Type Binding: Digital download only (not a hard copy). Paper Type Paper: Not applicable (digital format). File Size Potential Size: Can be very large, up to 4000 MB. ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder Bore X Stroke: Typically 54 mm x 54.5 mm (for Rotax 122) Displacement: 124.8 cc Compression Ratio: Typically around 12.0:1 (varies slightly by year/model) Lubrication System: Autolube (oil injection from a separate reservoir) Performance Horsepower: Approximately 30-34 HP at 10,500 RPM (varies by market regulations and specific model year) Torque: Approximately 18-20 Nm (13-15 lb-ft) at 9,500 RPM (varies by market and specific model year) Fuel System Carburetor: Dell'Orto VHSA or PHBH (typically 34mm or 33mm, depending on year and specific engine variant) Fuel Type: Unleaded gasoline (minimum 95 octane recommended) Fuel Delivery: Gravity feed from fuel tank via petcock to carburetor. 🔧 Transmission Standard Type: 6-speed constant mesh, sequential manual transmission Features Clutch: Wet multi-plate clutch, cable-actuated. Gear Ratios: Specific gear ratios are detailed within the manual, crucial for performance tuning. Final Drive: Chain drive Fluid Specifications Gear Oil Type: API GL-4 or GL-5, SAE 75W/90 or 10W/40 (refer to manual for exact specification, typically a motorcycle-specific gearbox oil). Gear Oil Capacity: Approximately 0.8 to 1.0 liters (refer to manual for exact capacity). 📐 Dimensions Exterior Length: Approx. 1940 mm (76.4 in) Width: Approx. 700 mm (27.6 in) (at handlebars) Height: Approx. 1120 mm (44.1 in) (at handlebars) Wheelbase: Approx. 1345 mm (53.0 in) Seat Height: Approx....