The RS125, produced from 1993 to 2002, is an iconic lightweight supersport motorcycle renowned for its performance-oriented engineering and race-inspired design. As an entry-level sportbike, it offers agile handling and a premium feel, often drawing styling and chassis elements from larger models. This first-generation model, identified by the RP chassis code, features a liquid-cooled, two-stroke, single-cylinder engine with a displacement of approximately 124.8 cc, delivering impressive power for its class. Its sophisticated braking system, including a front single disc with a four-piston caliper and a rear single disc, along with a monoshock rear suspension, contributes to its dynamic capabilities. This comprehensive service repair manual provides detailed information for the maintenance and repair of all RS125 variants from 1993 to 2002. It covers essential systems including the fuel, cooling, and lubrication systems, engine top end, clutch, transmission, and final drive, as well as chassis components like wheels, brakes, suspension, steering, and frame. The manual also details the electrical system and general information. With step-by-step instructions, hundreds of photos and illustrations, and guidance on routine maintenance, troubleshooting, and complete disassembly, this manual is an invaluable resource for do-it-yourself owners and professional mechanics seeking to keep their RS125 in optimal condition. 🏷️ Basic Information Identification Make: Aprilia Model: RS125 Model Variant: RS 125 Generation Generation Identifier: First Generation Codes Chassis Code: RP 👋 Introduction Market Position Target Audience: Do-it-yourself owners and experienced mechanics Competitive Analysis Advantage Over Paper: Less expensive, more convenient than old paper manuals Key Features Value Proposition: Inexpensive way to keep vehicle working properly, save money on mechanics User Experience: Easy to use, enjoyable for learning vehicle repair 📋 Manual Details Coverage Areas Model Years Covered: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Engine Variants Covered: All RS125 variants from 1993-2002 Page Count Estimated Page Count: Hundreds of pages (specific count not provided, but implied comprehensive) Manual Type Type: Complete Official Full Factory Service Repair Manual Language Language: English Format Digital Format: PDF Download Download Features: Speed Download, No Expiry Dates 📖 Manual Coverage Systems Covered Powertrain: Fuel system, Cooling system, Engine top end, Clutch, Engine lubrication system, Engine Removal/Installation, Crankshaft/Transmission, Final Drive Chassis And Suspension: Wheels/Tires, Brakes, Suspension, Steering, Frame Electrical And Accessories: Electrical System General: General Information, Appendix Procedures Included Maintenance: Standard maintenance procedures, routine checks, fluid changes Repair: Step-by-step instructions for repair and service procedures based on complete disassembly Diagnostics: Implied troubleshooting guidance through detailed explanations Technical Depth Depth Of Coverage: Comprehensive factory-level service and repair information Visual Aid Detail: Hundreds of photos and illustrations Scope: Covers ALL STYLES 📊 Manual Specifications File Format File Type: PDF Accessibility: Compatible with Windows and Mac, accessible via web browser on any computer or mobile device Print Quality Printability: Printable in its entirety or specific pages Page Durability: Pages are not subject to dirt or ripping as the original can be kept safely on PC Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) Requirements Software Requirements: Adobe PDF Reader and Winzip (free online) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder Displacement: 124.8 cc (approximate, common for RS125) Bore X Stroke: 54 x 54.5 mm (typical for this engine) Performance Horsepower: Approximately 30-35 HP (depending on specific model variant and market restrictions) Torque: Approximately 2.3-2.5 kgf-m (16.6-18.1 lb-ft) at ~8,000 RPM (typical) Fuel System Carburetion: Dell'Orto PHBH 28 (common for models of this era) Fuel Type: Unleaded gasoline (min 95 RON recommended) Fuel Delivery: Carbureted with automatic oil injection Cooling System Cooling Method: Liquid-cooled 🔧 Transmission Standard Type: 6-speed constant mesh Optional Optional Transmissions: N/A (standard gearbox) Features Clutch Type: Wet multi-plate Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1960 mm (77.2 in) Width: Approx. 710 mm (28.0 in) Height: Approx. 1130 mm (44.5 in) Wheelbase: Approx. 1370 mm (53.9 in) Weights Dry Weight: Approx. 131 kg (288.8 lbs) Fuel Capacity: Approx. 14 liters (3.7 US gal) 🛡️ Safety Features Ratings Safety Ratings: N/A (Motorcycle specific safety features are documented in manual) Active Features Braking System: Front: Single disc with 4-piston caliper; Rear: Single disc with 2-piston caliper Suspension Front: Telescopic fork, 40mm diameter (typically Marzocchi or Paioli) Suspension Rear: Monoshock with adjustable preload Passive Features Lighting: Halogen headlamp, LED tail light (common for this era) 💡 Technology Features Infotainment Infotainment System: N/A (Basic motorcycle instrumentation: speedometer, tachometer, odometer, coolant temperature gauge) Driver Assistance Driver Assistance Systems: N/A (No electronic rider aids common to modern vehicles) Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific mileage/time intervals. Typically every 2,000-3,000 km or annually. Spark Plug Replacement: Refer to manual. Typically every 6,000-8,000 km. Air Filter Cleaning: Refer to manual. Regular inspection and cleaning/replacement recommended based on riding conditions. Fluid Specifications Coolant Type: Ethylene glycol-based antifreeze/coolant (50/50 mix with distilled water recommended) Brake...