🏷️ Basic Information Identification Make: Aprilia Model: RS125 Model Variant: Sport Production Replica Year Range: 2006 onwards Codes Engine Code Prefix: Rotax 122 👋 Introduction Market Position Market Position: The Aprilia RS125 is a highly regarded 125cc sportbike known for its performance and handling, often considered a step-up from entry-level 125cc machines and a gateway to larger Aprilia sportbikes. This manual serves owners and independent workshops seeking in-depth knowledge to maintain and repair this enthusiast-focused motorcycle. Competitive Analysis Competitive Analysis: Competes with other premium 125cc sportbikes of its era, such as the Yamaha YZF-R125, Honda CBR125R, and KTM RC125, offering a more aggressive styling and race-inspired feel. Key Features Key Features: This manual's strength lies in its detailed, step-by-step procedures for almost every component of the RS125, making it an indispensable tool for owners who perform their own maintenance or for independent mechanics. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Maintenance, Rebuild, Refurbishment, Restoration Page Count Estimated Page Count: Hundreds Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly/assembly, top-end rebuild (cylinder, piston, rings), bottom-end rebuild (crankshaft, connecting rod, bearings), cooling system, lubrication system, intake system (carburetor, reed valve), exhaust system. Fuel System: Carburetor tuning, jetting, float bowl maintenance, fuel lines, fuel filter replacement. Transmission Drivetrain: Gearbox disassembly/assembly, clutch inspection/replacement, chain and sprockets maintenance, gearbox oil specifications. Electrical System: Ignition system troubleshooting, wiring diagrams, starter motor, alternator, battery maintenance, lighting system, fuses, relays. Brakes: Hydraulic system inspection, brake fluid replacement, caliper overhaul, pad replacement, disc inspection, bleeding procedures. Suspension Steering: Front fork overhaul (seals, oil), rear shock absorber adjustment/replacement, steering head bearing service, swingarm maintenance. Cooling System: Radiator, water pump, coolant hoses, thermostat, coolant specifications, bleeding procedures. Chassis Frame: Frame inspection, subframe, footpegs, engine mounting. Bodywork Fairings: Fairing removal/installation, decal application, seat maintenance. Procedures Included Maintenance Procedures: Routine checks, oil changes, filter replacements, chain adjustment, spark plug replacement, coolant flush, brake fluid flush, carburetor cleaning. Repair Procedures: Engine top-end rebuild, clutch replacement, fork seal replacement, electrical component troubleshooting, brake caliper rebuild, bearing replacement. Troubleshooting Guides: Diagnostic procedures for common starting issues, running problems, electrical faults, braking issues. Rebuild Procedures: Complete engine rebuild, gearbox overhaul, carburetor rebuilding. Technical Specifications Data: Torque values, clearances, fluid capacities, electrical resistance values, diagnostic codes. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic owner maintenance to full workshop-level engine and chassis rebuilds. 📊 Manual Specifications File Format File Format: PDF Searchable Text: Likely searchable, common for professional PDF manuals. Print Quality Print Quality Recommendation: Optimized for digital viewing; high-resolution graphics and clear text for potential printing. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder, liquid-cooled Engine Displacement: 124.8 cc Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: 12.2:1 (approximate, may vary by region/spec) Valve Mechanism: Reed valve intake, exhaust power valve (Rotax A.E.S.) Performance Horsepower Rating: Approximately 15 hp (11 kW) at 10,500 rpm (restricted for A1 license in many markets); unrestricted models can produce up to 30+ hp. Torque Rating: Approximately 11 Nm at 9,500 rpm (restricted); unrestricted models significantly higher. Fuel System Carburetor Type: Dell'Orto PHBH 28 (or similar, depending on market) Fuel Delivery: Gravity feed with automatic oil injection system (separate oil tank) Ignition Ignition Type: Digital electronic ignition with variable timing 🔧 Transmission Standard Transmission Type: 6-speed manual gearbox Clutch Type: Wet multi-plate Features Gear Ratios: Specific gear ratios will be detailed in the manual, crucial for performance tuning. Final Drive: Chain drive Fluid Requirements Gearbox Oil Type: Specific motorcycle-grade gear oil (e.g., API GL-4 or GL-5, viscosity typically 75W/90 or 80W/90). The manual will specify the exact grade and quantity. 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 720 mm Height: Approx. 1100 mm Wheelbase: Approx. 1345 mm Weights Dry Weight: Approx. 130-140 kg (varies by specification) Fuel Capacity: Approx. 13 Litres (including reserve) 🛡️ Safety Features Ratings Safety Ratings: Motorcycle safety is primarily determined by rider skill and adherence to road safety regulations. The manual covers crucial maintenance aspects that ensure safe operation. Active Features Active Safety Features: Responsive braking system, agile handling chassis, effective lighting system (headlight, taillight, indicators). Passive Features Passive Safety Features: Frame integrity, fairing design for rider protection. 💡 Technology Features Infotainment Infotainment System: N/A (Basic digital display and analog tachometer). Driver Assistance Driver Assistance Features: N/A (Focus on core mechanical and chassis technology). Engine Management Engine Management Features: Electronic ignition with automatic power valve control (A.E.S. - Aprilia Exhaust System) for optimized power delivery across the rev range. 🔧 Maintenance Service Intervals Oil Change Interval: Engine oil and gearbox oil changes typically recommended every 3,000-5,000 km or annually, depending on usage. The manual will provide precise intervals. Spark Plug...