🏷️ Basic Information Identification Make: Aprilia Model: RS4 125 4T Years Covered: 2011, 2012, 2013, 2014 Codes Engine Code: AM6 (Note: While the product description mentions '4T', the RS4 125 typically uses a 2-stroke engine, often the AM6. This manual likely covers the 4-stroke variant if produced for specific markets or has an error in description. Assuming 4T for the purpose of manual detail.) 👋 Introduction Market Position Target Audience: Aprilia RS4 125 4T owners with basic mechanical skills and independent professional mechanics. Primary Market: European markets, particularly for riders holding A1 license (under 125cc). Competitive Analysis Value Proposition: Provides dealership-level repair information, enabling cost savings on maintenance and repairs, empowerment for DIY tasks. Key Features Content Highlights: Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications, advanced troubleshooting. Diagnostic Capability: Focus on 'Advanced Troubleshooting' indicating in-depth diagnostic routines. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Troubleshooting, Diagnostics Secondary Coverage: Wiring Schematics, Specifications, Component Diagrams, Adjustments Page Count Estimated Pages: Extensive (Specific page count not provided but described as 'full' and 'complete') Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Accessibility: Viewable on PC, Mac, phones, and e-readers like Kindle. Software Requirements: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine Mechanical: Engine specifications, engine removal/installation, lubrication, cooling system, fuel system, intake and exhaust systems. Transmission Drivetrain: Transmission, drive chain, sprockets, clutch operation (implied). Chassis Suspension: Steering system, shocks (suspension components), frame, wheels, brakes (implied). Electrical Electronics: Electrical system, wiring diagrams, advanced troubleshooting for electrical components. Bodywork Cosmetics: Bodywork repair and maintenance. Braking System Detail: Front and rear brake caliper service, master cylinder overhaul, brake line replacement, brake fluid bleeding procedures. Cooling System Detail: Radiator service, fan operation, thermostat replacement, coolant flush and refill procedures. Intake Exhaust Detail: Air filter replacement, exhaust system inspection and repair, catalytic converter (if fitted) servicing. Procedures Included Routine Maintenance: Periodic checks, adjustments, lubrication, fluid changes. Repair Diagnostics: Step-by-step repair instructions, troubleshooting guides, diagnostics for various systems. Engine Overhaul: Detailed procedures for engine disassembly, inspection, component replacement, and reassembly. Fuel System Servicing: Troubleshooting and servicing of fuel injection system (if applicable) or carburetor, fuel pump, and filter. Electrical Diagnostics: Step-by-step diagnostic procedures for the entire electrical system, including ignition, lighting, charging, and sensors. Suspension Adjustment: Instructions on adjusting forks and rear shock (preload, damping if applicable) for optimal handling. Wheel Tire Service: Wheel bearing replacement, tire mounting/balancing, and wheel alignment procedures. Troubleshooting Methodology: Systematic approach to diagnosing problems, often using symptom-based guides. Technical Depth Depth: Comprehensive, covering basic maintenance to advanced repair and diagnostics, mirroring dealership technician procedures. Torque Specifications: All critical fasteners will have specified torque values for assembly and disassembly. Special Tools: Identification of any specific Aprilia or commonly required specialty tools for certain procedures. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable (individual pages or full document) Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke (as per product title, typically 125cc single-cylinder) Performance Horsepower Range: Likely in the 15 HP range (typical for 125cc A1 license category) Torque Range: Not specified, but expected to be modest for a 125cc engine. Fuel System Fuel Delivery: Likely Fuel Injection (typical for modern 4-stroke 125cc motorcycles, though carburetion was common in earlier models). 🔧 Transmission Standard Transmission Type: 6-speed manual Optional Transmission Options: N/A (Standard) Features Clutch Type: Wet multi-plate clutch (typical for this class). 📐 Dimensions Exterior Bike Type: Sportbike / Supersport replica Weights Dry Weight: Approximately 130-140 kg (typical for class) Wet Weight: Approximately 145-155 kg (with fluids) 🛡️ Safety Features Ratings Safety Features: Standard motorcycle safety features, ABS optional on some later models (not specified for this manual). Active Features Braking System: Disc brakes front and rear. Hydraulic actuation. Passive Features Frame Construction: Aluminum twin-spar frame (typical for Aprilia sports bikes). 💡 Technology Features Infotainment Dashboard Features: Digital instrument cluster with tachometer, speedometer, odometer, trip meter, fuel level indicator, and diagnostic lights. Driver Assistance ABS Availability: Optional on some models, not standard across the range for these years. Connectivity Connectivity Features: N/A (Basic motorcycle electronics) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 7,500 km or annually, refer to manual for exact specification. Spark Plug Replacement: Every 10,000 - 15,000 km, refer to manual for exact specification. Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-40 semi-synthetic or fully synthetic motorcycle oil recommended. Manual will specify exact grade and capacity. Coolant Type: Ethylene glycol-based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water. Manual will specify exact type and capacity. Brake Fluid Type: DOT 4 or DOT 5.1 hydraulic brake fluid. Manual will specify. Known Issues Common Wear Items: Clutch wear, chain and sprocket wear, fork seal leaks, occasional electrical gremlins (typical...