🏷️ Basic Information Identification Make: Aprilia Model: RS4 125 Model Variant: Full Fairing Sportbike Product Type: Complete Workshop Service Repair Manual Codes Covered Model Years: 2011, 2012, 2013, 2014 Internal Product Code: APRILIA_RS4_125_2011_2014_WSM 👋 Introduction Market Position Category: Entry-level sportbike, lightweight motorcycle. Target Audience: New riders, commuting, track day enthusiasts, riders seeking a sporty 125cc experience. Competitive Analysis Key Competitors: Yamaha YZF-R125, KTM RC 125, Honda CBR125R, Suzuki GSX-R125. Unique Selling Proposition: Aprilia's reputation for sporty chassis dynamics and Italian design. Key Features Design Philosophy: Sportbike styling derived from larger Aprilia models, agile handling, performance-oriented chassis. Manual Value Proposition: Empowers owners to perform their own maintenance and repairs, saving significant costs and extending vehicle life. 📋 Manual Details Coverage Areas Engine Overhaul: Yes Transmission Service: Yes Electrical System Diagnostics: Yes Suspension And Forks: Yes Braking System Maintenance: Yes Chassis And Frame Repair: Yes Fuel And Emission Systems: Yes Cooling System Service: Yes Bodywork And Fairings: Yes Troubleshooting Guides: Yes Torque Specifications: Yes Wiring Diagrams: Yes Maintenance Schedules: Yes Diagnostic Procedures: Yes Special Tool Requirements: Yes All Engine Variants: Yes All Trim Levels: Yes All Transmission Types: Yes Page Count Estimated Pages: 300+ Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Digital Download (PDF) Accessibility: Printable, Tablet/Smartphone Compatible Software Requirement: Adobe Reader (Free) Delivery Delivery Method: Instant Email Delivery 📖 Manual Coverage Systems Covered Engine Mechanical: Cylinder head, valves, piston, connecting rod, crankshaft, timing, lubrication system, oil pump, oil filter. Fuel System: Fuel injection system, throttle body, fuel pump, fuel filter, injectors, fuel pressure regulator. Ignition System: ECU, ignition coils, spark plugs, crankshaft position sensor, camshaft position sensor. Cooling System: Radiator, coolant pump, thermostat, hoses, fan, coolant specifications. Exhaust System: Exhaust manifold, catalytic converter, muffler, lambda sensor. Transmission And Drivetrain: Clutch operation, gear selection mechanism, final drive (chain and sprockets), transmission fluid. Suspension System: Front telescopic forks (spring rate, damping, oil levels), rear monoshock absorber (pre-load adjustment, damping). Braking System: Front and rear disc brakes, brake calipers, master cylinders, brake fluid specifications, bleeding procedures, ABS (if equipped). Wheel And Tire Assembly: Wheel bearing replacement, tire pressure recommendations, wheel specifications. Electrical System: Battery, starter motor, alternator/generator, lighting system (headlight, taillight, turn signals), horn, fuses, relays, wiring harness. Instrumentation And Controls: Dashboard assembly, switches, levers, throttle grip, brake levers. Frame And Chassis: Frame inspection, swingarm, steering head bearings, rear-sets. Bodywork And Fairings: Fairing removal and installation, seat assembly, fuel tank mounting, front fender, rear fender. Procedures Included Preventive Maintenance: Oil changes, filter replacements, chain adjustment, brake pad inspection, tire wear check, coolant flush. Routine Service: Scheduled maintenance checks, fluid level top-ups, spark plug replacement. Engine Repair And Rebuild: Top-end rebuild, bottom-end overhaul, valve clearance adjustment, piston ring replacement. Transmission Troubleshooting: Clutch adjustment and replacement, gear shifting issues diagnosis, output shaft seal replacement. Electrical Troubleshooting: Diagnosis of starting problems, charging system faults, lighting malfunctions, sensor issues. Suspension Servicing: Fork seal replacement, fork oil change, rear shock absorber servicing, spring replacement. Brake System Repair: Brake pad replacement, caliper overhaul, master cylinder rebuild, brake line replacement, bleeding procedure. Wheel Bearing Replacement: Front and rear wheel bearing renewal. Steering Head Bearing Service: Inspection and replacement of steering head bearings. Fairing Removal And Installation: Step-by-step guide for body panel disassembly and reassembly. Diagnostic Fault Code Retrieval: Methods for accessing and interpreting diagnostic trouble codes (DTCs). Bodywork And Cosmetic Repair: Minor dent repair, scratch removal guidance. Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds and diagnostics). Diagnostic Capability: Advanced diagnostic procedures for electrical and mechanical systems. Rebuild Procedures: Detailed instructions for complete engine and transmission rebuilds. Specifications: Inclusion of critical torque values, fluid capacities, and clearances. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, four-stroke, liquid-cooled. Displacement: 124.2 cc (7.58 cu in). Bore X Stroke: 58 mm x 47 mm. Compression Ratio: 12.0:1 (typical). Valve Train: DOHC, 4 valves per cylinder. Performance Claimed Horsepower: ~15 hp @ 10,000 rpm (subject to regional restrictions). Claimed Torque: ~10 Nm @ 8,000 rpm (subject to regional restrictions). Fuel System Fuel Delivery: Electronic Fuel Injection (EFI). Fuel Type: Unleaded gasoline (min 95 RON recommended). Lubrication System Oil Type Recommendation: Fully synthetic motorcycle oil, SAE 10W-40 or 15W-50 meeting API SG/SH/SJ/SL or JASO MA/MA2. Oil Capacity With Filter Change: ~1.2 Liters. Cooling System Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water. 🔧 Transmission Standard Transmission Type: 6-speed constant mesh. Clutch Type: Wet, multi-plate clutch. Features Gear Ratios: Detailed ratios for each gear are provided within the manual. Final Drive: O-ring sealed chain. 📐 Dimensions Exterior Length: ~2000 mm (approximate). Width: ~750...