🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Codes Model Code Range: AP060010 onwards (varies by specific model year) 👋 Introduction Market Position Segment: Lightweight Sportbike / Supersport Target Audience: Enthusiast riders, track day participants, mechanics. Competitive Analysis Key Competitors: Yamaha YZF-R125 (later models), Honda CBR125R (later models), Kawasaki Ninja 125 (later models), Cagiva Mito 125. Key Features Model Highlights: Renowned for its race-replica styling, performance-oriented 2-stroke engine, capable chassis and suspension, and lightweight handling characteristics. Manual Value Proposition: Essential for maintaining the performance and longevity of a highly regarded, performance-focused 125cc sportbike. Empowers owners for self-service and in-depth understanding. 📋 Manual Details Coverage Areas Covered Years: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Page Count Estimated Pages: Over 300 (typical for comprehensive workshop manuals of this era) Manual Type Type: Workshop Service Manual / Repair Manual Language Language: English (typical, verify specific edition) Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, piston, crankshaft, connecting rod, lubrication system, cooling system (liquid-cooled), valve clearance adjustment, decompression mechanism (if applicable). Fuel System: Carburetor(s) (Dell'Orto PHBH 28/30, VHST 28/30), fuel pump, fuel lines, fuel tank maintenance, jetting specifications, mixture adjustment, idle speed control. Ignition System: CDI ignition, spark plug specifications, ignition timing, coil testing, wiring diagrams for ignition. Exhaust System: Expansion chamber details, silencer maintenance, gasket replacement, pipe fitting. Transmission: 6-speed gearbox, clutch (wet multi-plate), clutch actuation mechanism, gear shift linkage, gearbox oil specifications and change intervals, troubleshooting transmission issues. Chassis Frame: Frame construction (e.g., aluminum twin-spar), steering head bearing maintenance, swingarm pivot, frame inspection for damage. Suspension Front: Upside-down telescopic forks (e.g., Marzocchi, Paioli), fork oil type and level, fork seal replacement, internal fork components, spring preload adjustment (if applicable). Suspension Rear: Monoshock rear suspension, shock absorber service and adjustment, linkage system maintenance, rear shock absorber mounting. Brakes Front: Hydraulic disc brake system, caliper maintenance, piston seals, brake pad replacement, brake fluid type (DOT 4), bleeding procedure, rotor specifications. Brakes Rear: Hydraulic disc brake system, caliper maintenance, brake pad replacement, brake fluid type (DOT 4), bleeding procedure, rotor specifications. Wheels Tires: Wheel bearing maintenance, tire pressure specifications, recommended tire sizes, wheel balancing, spoke tension (if applicable). Electrical System: Wiring diagrams, battery specifications, charging system (alternator/stator), rectifier/regulator, lighting system (headlight, taillight, indicators), horn, starter motor (if electric start equipped), fuses, circuit protection. Bodywork Fairings: Fairing removal and installation, seat removal, fuel tank removal, body panel fasteners, graphics and decals. Controls: Throttle control system, brake lever adjustment, clutch lever adjustment, footpeg mounting, handlebar specifications. Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment and lubrication, spark plug checks, air filter cleaning/replacement, coolant checks and top-up, brake system checks. Engine Repair: Top-end rebuild (piston, rings), bottom-end rebuild (crankshaft, bearings), cylinder head gasket replacement, valve adjustment, oil seal replacement. Transmission Repair: Clutch plate replacement, gearbox disassembly and reassembly, shift drum and fork servicing. Suspension Service: Front fork seal and oil replacement, rear shock absorber service, linkage bearing lubrication. Brake Service: Brake pad replacement, caliper overhaul, brake line replacement, brake system bleeding. Electrical Diagnostics: Troubleshooting electrical faults using wiring diagrams, testing components (coils, regulators), battery testing. Carburetor Tuning: Carburetor disassembly, cleaning, jetting selection, synchronization (if dual carb), idle mixture and speed adjustment. Troubleshooting: Problem-solving guides for common issues (e.g., starting problems, poor performance, overheating, electrical faults). Bodywork Repair: Fairing repair, panel alignment, fastener replacement. Technical Depth Depth: Comprehensive (covering everything from basic maintenance to full engine and chassis rebuilds). Diagnostic Capability: Advanced diagnostic procedures and troubleshooting trees for all major systems. Rebuild Procedures: Detailed step-by-step instructions for complete engine, transmission, and suspension overhauls. 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable (typically, for efficient information retrieval) Print Quality Quality: High resolution (suitable for clear printing of diagrams and text) Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Type: Two-stroke, liquid-cooled, single-cylinder Displacement: 124.8 cc (approx.) Bore X Stroke: 54 mm x 54.5 mm (typical, verify for specific year) Power Output: Approx. 30-34 HP (depending on market and specific tune, often restricted in some regions for licensing). Torque Output: Approx. 20-22 Nm (depending on specific tune). Cooling System: Liquid-cooled with radiator and fan. Lubrication: Pre-mix or separate oil injection system (depending on variant/year). Performance Compression Ratio: Typically around 8.5:1 to 9.0:1 (verify for specific model). Fuel System Carburetor Model: Dell'Orto PHBH 28/30 AS or VHST 28/30 (common, varies by year/market). Fuel Type: Unleaded gasoline (95 RON minimum recommended). 🔧 Transmission Standard Type: 6-speed constant mesh Clutch Type: Wet, multi-plate Features Gear Ratios: Specific ratios detailed within the manual, crucial for performance tuning. Final Drive: Chain drive 📐 Dimensions Exterior Wheelbase: Approx. 1360 mm (136 cm) Seat Height: Approx. 820 mm (82 cm) Weights Dry Weight: Approx. 130-135 kg (depending...