🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2009 Product Type: Service Repair Workshop Manual 👋 Introduction Market Position Segment: Lightweight sport motorcycle, competitive in the 125cc supersport class. Target Demographic: Young riders, commuters, and track day enthusiasts seeking performance and style. Competitive Analysis Key Competitors: Yamaha YZF-R125, Honda CBR125R, KTM RC 125. Key Features Design: Aggressive, race-inspired styling mirroring larger Aprilia sportbikes. Performance: Known for its potent 2-stroke engine performance (though this generation shifted to 4-stroke) and agile handling. Handling: Premium suspension components and chassis design contribute to excellent ride and handling characteristics. 📋 Manual Details Coverage Areas General Coverage: Comprehensive service and repair instructions for the Aprilia RS125 (2009). Target Audience: Professional mechanics and experienced DIY enthusiasts. Page Count Estimated Pages: Variable, typically 300-500 pages for this level of detail. Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Primary Language: English Format File Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, including top-end (cylinder, piston, cylinder head), bottom-end (crankshaft, connecting rod, bearings), valve timing, carburetor servicing, and ignition system diagnostics. Fuel System: Fuel tank, fuel pump, fuel lines, carburetor (Dell'Orto PHBH 28 QD or similar), air filter assembly, and fuel injection system (if applicable). Cooling System: Radiator, coolant hoses, water pump, thermostat, and fan control system. Exhaust System: Exhaust manifold, catalytic converter (if equipped), muffler, and associated fittings. Transmission: Gearbox (6-speed sequential), clutch operation (cable-actuated wet multi-plate), gear shifting mechanism, and lubrication. Chassis: Frame (aluminium alloy twin-spar), steering head bearings, swingarm, rear shock absorber, and front forks (upside-down telescopic). Brakes: Front disc brake (radial-mount caliper), rear disc brake, brake fluid specifications, bleeding procedures, and pad replacement. Wheels And Tires: Wheel types (spoked or alloy), tire sizes, inflation pressures, and wheel bearing maintenance. Electrical System: Battery, charging system (alternator, regulator/rectifier), starter motor, lighting (headlight, tail light, indicators), horn, and wiring diagrams. Instrumentation: Dashboard layout, speedometer, tachometer, warning lights, and sensor diagnostics. Bodywork: Fairings, seat, fuel tank cover, fenders, and mounting hardware. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug checks, chain adjustment, brake lever adjustment, and general inspection. Troubleshooting: Diagnostic flowcharts for common problems, symptom-based troubleshooting guides. Repair And Overhaul: Step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly. Torque Specifications: Detailed torque values for all critical fasteners. Special Tools: Identification and usage of specialized tools required for specific procedures. Wiring Diagrams: Clear and detailed electrical wiring schematics. Technical Depth Depth: Comprehensive, covering everything from basic maintenance to full engine and transmission rebuilds. Diagnostics: Advanced diagnostic procedures for electrical and mechanical systems. Rebuild Procedures: Detailed instructions for rebuilding major components. 📊 Manual Specifications File Format Format: PDF Searchability: Searchable text content for quick information retrieval. Printability: Printable pages for easy reference in a workshop environment. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Physical Format: N/A (Digital Format) Paper Type Physical Format: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Type: Four-stroke, single-cylinder, liquid-cooled Displacement: 124.2 cc Bore X Stroke: 58 mm x 47 mm Compression Ratio: Approximately 12.0:1 Valve Train: DOHC, 4 valves per cylinder Performance Horsepower: Approximately 15 hp (limited by licensing regulations in some markets, actual may be higher). Torque: Approximate peak torque around 12 Nm (8.9 lb-ft) at 8,000 rpm. Fuel System Induction: Dell'Orto PHBH 28 QD carburetor (or similar electronic fuel injection system in some markets). Fuel Type: Unleaded gasoline, minimum 95 RON. Lubrication System: Wet sump, forced lubrication. Oil Type: API SG or higher, SAE 10W-40 semi-synthetic or synthetic motorcycle oil. 🔧 Transmission Standard Type: 6-speed sequential constant mesh Final Drive: Chain driven (520 pitch). Features Clutch: Wet multi-plate, cable-actuated. Gear Ratios: Specific ratios detailed in manual, typically optimized for sporty performance. Transmission Oil Type: API GL-4, SAE 80W/90 hypoid gear oil (or specified alternative). 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 740 mm Height: Approx. 1135 mm Wheelbase: Approx. 1345 mm Seat Height: Approx. 810 mm Weights Dry Weight: Approx. 130 kg Curb Weight: Approx. 144 kg (with all fluids) Maximum Load: Typically rated for 1 rider + minimal luggage. Fuel Capacity Tank Capacity: Approx. 13 liters (including 3 liters reserve). 🛡️ Safety Features Ratings Crash Test Results: N/A (Motorcycles are not subjected to standardized crash testing like cars). Active Features Braking System: High-performance hydraulic disc brakes front and rear, often with braided lines for improved feel. Suspension: Adjustable front forks and rear monoshock provide stability and control. Passive Features Lighting: Halogen headlight, LED tail light, and clear turn signals for visibility. Frame Construction: Robust aluminum alloy frame designed for rigidity and rider feedback. Tires: Sport-oriented tire compound and profile for grip. 💡 Technology Features Infotainment System: Basic instrumentation with analogue tachometer and digital speedometer, essential indicators. Features: Includes trip meter, odometer, fuel level warning light, engine check light, oil pressure warning light. Driver...