🏷️ Basic Information Identification Make: Aprilia Model: RS125 Vehicle Type: Motorcycle Manual Product Name: Aprilia RS125 Motorcycle Workshop Service Repair Manual Download 👋 Introduction Market Position Positioning: The Aprilia RS125 is a well-regarded entry-level sportbike, known for its race-inspired styling and performance for its class, appealing to younger riders and those seeking a lightweight, agile machine. This manual supports enthusiasts and mechanics in maintaining and repairing these iconic motorcycles. Competitive Analysis Competitors: Competes with other 125cc sportbikes such as the Yamaha YZF-R125, Honda CBR125R, and KTM RC 125, offering a distinct Italian flair and often a more potent two-stroke engine in earlier generations. Key Features Features: Race-derived chassis and suspension, sharp aerodynamic styling, high-revving two-stroke engine (in most iterations), and a potent braking system for its class. Manual Value Proposition Value: Provides crucial, detailed information for owners and technicians to perform accurate maintenance, troubleshooting, and repairs, thereby preserving the performance and longevity of the Aprilia RS125. 📋 Manual Details Coverage Areas Engine: True Transmission: True Fuel System: True Ignition System: True Cooling System: True Exhaust System: True Chassis: True Suspension Front: True Suspension Rear: True Brakes Front: True Brakes Rear: True Electrical System: True Lighting System: True Instrumentation: True Bodywork And Fairings: True Troubleshooting: True Maintenance Schedule: True Page Count Estimated Pages: Comprehensive (exact number not specified, but implies extensive coverage) Manual Type Type: Workshop Service Repair Manual Language Language: English (implied by product description) Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, and reassembly procedures for the 125cc two-stroke engine. Carburetion: Detailed explanation of carburetor operation, adjustment, cleaning, and rebuilding for models equipped with Dell'Orto carburetors (e.g., PHBH 28, VHSB 34). Exhaust Tuning: Information on expansion chamber design principles and tuning for optimal performance. Transmission And Clutch: Procedures for clutch inspection, adjustment, and replacement, as well as gearbox disassembly and assembly. Suspension Tuning: Specifications for fork oil levels, damping adjustments, and rear shock preload settings. Electrical Diagnostics: Wiring diagrams for various model years and electrical systems, including ignition, lighting, and starting circuits. Frame And Bodywork: Instructions for fairing removal, installation, and minor bodywork repairs. Procedures Included Scheduled Maintenance: Routine service tasks such as oil changes, filter replacements, spark plug servicing, and chain adjustment. Troubleshooting Guides: Step-by-step diagnostic procedures for common starting, running, and electrical issues. Rebuild Instructions: Detailed guides for rebuilding major components like the engine, gearbox, and suspension forks. Component Replacement: Instructions for replacing wear items and common failure points like brake pads, clutch plates, and wheel bearings. Calibration And Adjustment: Procedures for adjusting the clutch, throttle, brakes, and ignition timing. Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and chassis rebuilds, including in-depth diagnostics and specifications. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Searchability: Likely text-searchable PDF for efficient information retrieval. Print Quality Quality: High-resolution, illustrated with clear diagrams and images. Binding Type Type: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder with reed valve induction (typical for most RS125 variants). Some later models might have variations. Displacement: 124.8 cc (approximate, varies slightly by specific model year) Bore X Stroke: Typically 54 mm x 54.5 mm (specific values may vary) Compression Ratio: Around 11.5:1 to 12.8:1 (varies by model and tuning) Power Output: Ranges from approximately 25 hp to 33 hp at the crank, depending on model year, emissions regulations, and tuning. Restricted versions for learner riders exist. Torque: Approximately 16-18 Nm (varies by model year and tuning) Performance Top Speed: Typically around 140-155 km/h (87-96 mph), depending on rider, conditions, and model variant. Acceleration: Capable of 0-100 km/h (0-62 mph) in approximately 7-9 seconds. Fuel System Fuel Delivery: Carburetor (e.g., Dell'Orto PHBH 28 AS or VHSB 34 LD on later models) Fuel Type: Unleaded gasoline, minimum 95 RON (octane rating may vary based on specific engine tuning). Oil Mixing: Automatic oil injection system for two-stroke engine oil. 🔧 Transmission Standard Type: 6-speed constant mesh sequential gearbox Features Clutch: Wet multi-plate clutch, cable-operated Final Drive: O-ring sealed chain drive 📐 Dimensions Exterior Length: Approximately 1950 mm (varies by model year) Width: Approximately 740 mm (varies by model year) Height: Approximately 1135 mm (varies by model year) Weights Dry Weight: Approximately 130-135 kg (dry weight, varies by model year) Fuel Tank Capacity: Typically 12-13 liters 🛡️ Safety Features Ratings Type: Motorcycle safety standards, not typically rated by car-centric safety organizations. Active Features Brakes: Disc brakes front and rear. Front typically a dual-piston caliper with a large diameter disc (e.g., 320mm), rear a single-piston caliper with a smaller disc (e.g., 210mm). ABS was not standard on most earlier models. Tires: Sport-biased tire fitment, crucial for grip and handling. Passive Features Frame: Aluminum twin-spar frame for rigidity and light weight. Lighting: Halogen headlights for illumination, LED taillight...