🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Model Years Covered: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Codes Common Chassis Codes: RP, ETV 👋 Introduction Market Position Segment: Lightweight sportbike, often considered a gateway to supersport riding. Target Audience: Young riders, track day enthusiasts, urban commuters seeking performance and style. Competitive Analysis Key Competitors: Yamaha YZF-R125 (later models), Honda CBR125R, Kawasaki Ninja 125 (later models), Derbi GPR125. Key Features Design Philosophy: A2-license friendly, race-inspired styling, agile handling, potent 2-stroke performance for its class. Performance Characteristics: Known for its sharp acceleration and impressive top-end speed in the 125cc segment, often outperforming 4-stroke rivals. Technical Innovation: Aprilia's expertise in 2-stroke engine design and chassis dynamics. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Manual (WSM) / Repair Manual Language: English (Assumed, typical for these manuals) Format: Digital (PDF, likely searchable) Page Count Estimated Page Count: 300-500 pages (typical for comprehensive WSMs) 📖 Manual Coverage Systems Covered Engine Mechanical: Top-end overhaul (cylinder, piston, rings), bottom-end overhaul (crankshaft, bearings, con-rod), valve timing, compression testing, cylinder boring/honing, carburetor tuning and rebuilding. Engine Electrical: Ignition system (CDI, spark plug), stator and rotor diagnosis, wiring diagrams, starter system, charging system, troubleshooting electrical faults. Fuel System: Fuel tank inspection, fuel petcock operation, fuel lines, fuel filter replacement, carburetor model identification (e.g., Dell'Orto PHBH 28/30), jetting information. Transmission Drivetrain: Clutch operation, clutch plate replacement, gearbox internal components, gear shifting mechanisms, chain and sprocket maintenance, lubrication. Cooling System: Radiator inspection and cleaning, coolant type and capacity, thermostat operation, water pump diagnosis and repair, fan system. Exhaust System: Expansion chamber inspection, exhaust gasket replacement, mufflers. Brakes: Front and rear brake caliper service, master cylinder overhaul, brake fluid type (DOT 4), brake pad replacement, bleeding procedures, rotor inspection. Suspension: Front fork service (oil type, level, seal replacement), rear shock absorber adjustment and overhaul, linkage maintenance. Wheels Tires: Wheel bearing replacement, tire pressure specifications, wheel balancing, spoke tensioning (if applicable). Steering: Steering head bearing inspection and adjustment, handlebar maintenance. Electrical Lighting: Headlight, taillight, brake light, turn signal bulb types and replacement, battery specifications and maintenance, fuse box layout. Bodywork: Fairing removal and installation, seat adjustment, fuel tank removal, minor body panel repairs. Procedures Included Routine Maintenance: Oil changes (2-stroke oil injection system), spark plug replacement, air filter cleaning/replacement, chain adjustment, brake inspection, tire pressure checks. Troubleshooting: Diagnostic flowcharts for common starting issues, running problems, electrical faults, and performance issues. Component Overhaul: Detailed step-by-step instructions for rebuilding the carburetor, brake calipers, clutch, and water pump. Reassembly Rebuilds: Torque specifications for critical fasteners, assembly sequences for major components, engine rebuild procedures. Special Tools: Identification of specialized tools required for certain tasks (e.g., flywheel puller, clutch compressor). Technical Depth Diagnostic Capabilities: Comprehensive diagnostic procedures for identifying the root cause of mechanical and electrical failures. Repair Complexity: Suitable for intermediate to advanced DIY mechanics and professional technicians. Information Detail: Detailed exploded diagrams, clear step-by-step instructions, specific measurement tolerances, and troubleshooting trees. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Print Quality: High-resolution scans, suitable for printing specific sections or the entire manual. Binding Type Digital Format Notes: Provided as a digital download, no physical binding. Paper Type Digital Format Notes: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, single-cylinder, liquid-cooled Displacement: 124.8 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 12.5:1 (approx.) Induction System: Reed valve intake, carburetor Carburetor Model: Dell'Orto PHBH 28/30 (common) Ignition System: CDI (Capacitor Discharge Ignition) Lubrication: Pre-mix or automatic oil injection system Performance Horsepower Max: Approx. 30-34 HP (depending on market restrictions and specific model year) Torque Max: Approx. 20-22 Nm Fuel System Fuel Type: Unleaded gasoline (RON 95 or higher recommended) Fuel Tank Capacity: Approx. 13 liters 🔧 Transmission Standard Type: 6-speed manual Clutch Type: Wet, multi-plate Features Gear Ratios: Varies by specific year/model, detailed in manual. Typically close-ratio for sporty performance. Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 720 mm Height: Approx. 1140 mm Wheelbase: Approx. 1345 mm Weights Dry Weight: Approx. 132 kg Wet Weight: Approx. 140 kg (with fluids) 🛡️ Safety Features Active Features Braking System: Hydraulic disc brakes front and rear. Front typically features a dual-piston caliper. Lighting: Halogen headlight, LED taillight (depending on year). Passive Features Chassis Design: Deltabox frame for rigidity and handling. Tires: Sport-oriented radial tires. 💡 Technology Features Infotainment Dashboard: Analog tachometer, speedometer, odometer, coolant temperature gauge, fuel gauge, indicator lights. Driver Assistance ABS: Not typically equipped with ABS during this production period. Connectivity Connectivity Features: No digital connectivity features (e.g., Bluetooth, smartphone integration). 🔧 Maintenance Service Intervals Oil Change 2 Stroke: Check and top-up 2-stroke oil reservoir as needed. Regular inspection of oil delivery system. Spark Plug: Inspect every 3,000-5,000 km, replace as...