🏷️ Basic Information Identification Make: Aprilia Model: RS 125 Year: 2006 onwards Codes Engine Code: Rotax 122 👋 Introduction Market Position Positioning: The Aprilia RS 125 is a highly regarded, entry-level performance sportbike renowned for its styling, handling, and potent 125cc two-stroke engine. This manual caters to owners and technicians looking for in-depth repair and maintenance information for this iconic model. Competitive Analysis Competitors: Competes with other 125cc sportbikes of its era such as the Yamaha YZF-R125, Honda CBR125R, and Cagiva Mito. Key Features Manual Benefits: Provides comprehensive coverage essential for maintaining the RS 125's performance and longevity, including detailed engine and chassis procedures. Includes crucial wiring diagrams for electrical system diagnostics. 📋 Manual Details Coverage Areas Primary Coverage: All 2006 onward Aprilia RS 125 models Page Count Estimated Pages: Likely 300-500 pages (typical for comprehensive workshop manuals) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete engine service, timing chain service, engine firing order Fuel System: Fuel system service Transmission: Gearbox service, removal and installation, gearbox Electrics: Electrics, wiring diagrams included Suspension: Suspension, front suspension Brakes: Brake servicing procedures Cooling System: Cooling system Exhaust System: Exhaust system, exhaust service Bodywork: Bodywork Drivetrain: Transmission, U-joint service procedures, CV joint service procedures Clutch: Clutch removal and installation Procedures Included Maintenance: Factory maintenance schedules Repair: Factory repair procedures Diagnostics: Fault finding Technical Depth Depth: Comprehensive engine overhaul, gearbox rebuilds, suspension tuning, electrical diagnostics, bodywork repair, and routine maintenance. 📊 Manual Specifications File Format Compatibility: Works with all versions of Windows & Mac Software Requirements: Adobe PDF Reader & WinZip Print Quality Illustrations: Abundant illustrations, lots of pictures & diagrams Binding Type Binding: Digital PDF (not a physical book) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder (Rotax 122) Displacement: 124.8 cc Performance Bore X Stroke: 54 mm x 54.5 mm Compression Ratio: Approximately 12.5:1 (varies by specific model/tuning) Power Output: Typically around 30-34 hp (22-25 kW) at the crank, depending on market and specific configuration. Torque: Specific torque figures vary, but generally in the range of 20-23 Nm. Fuel System Carburetion: Typically Dell'Orto VHSA or PHBH carburetor (e.g., 28mm or 34mm) Fuel Type: Unleaded gasoline, typically 95 RON or higher Lubrication Oil System: Pre-mix or separate oil injection system (depending on specific model variant). Engine Firing Order Firing Order: As specified in the manual, typically single-cylinder firing. 🔧 Transmission Standard Gearbox Type: 6-speed constant mesh sequential gearbox Features Clutch Type: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1950 mm (76.8 in) Width: Approx. 730 mm (28.7 in) Height: Approx. 1060 mm (41.7 in) Wheelbase: Approx. 1340 mm (52.8 in) Weights Dry Weight: Approx. 140 kg (308.6 lbs) Fuel Tank Capacity: Approx. 13 liters (3.4 US gal) 🛡️ Safety Features Ratings Safety Design: Sportbike design with fairings for aerodynamics and rider protection. Focus on braking performance and chassis stability. Active Features Braking System: Front: Disc brake (e.g., 320mm disc with 4-piston caliper), Rear: Disc brake (e.g., 220mm disc with 2-piston caliper). ABS was not standard on most models of this era. Passive Features Lighting: Dual headlights for visibility 💡 Technology Features Infotainment Instrument Cluster: Analog tachometer, digital speedometer, odometer, trip meter, coolant temperature gauge, and indicator lights. Driver Assistance ABS: Not typically equipped with ABS in this era. Connectivity Connectivity Features: N/A (Basic motorcycle technology) 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific intervals, but typically every few thousand kilometers for the gearbox oil and depending on usage for engine oil/pre-mix ratio. Spark Plug Replacement: Intervals vary based on plug type and usage, but typically every 5,000-10,000 km. Air Filter Cleaning: Regular inspection and cleaning/replacement based on operating conditions. Fluid Specifications Engine Oil Type: High-quality 2-stroke engine oil for separate injection systems (if equipped) or as specified for pre-mix. Refer to manual for specific API/JASO ratings. Gearbox Oil Type: API GL-4 or GL-5 gear oil, typically SAE 75W/90 or 80W/90. Coolant Type: Ethylene glycol-based antifreeze coolant with corrosion inhibitors, mixed with distilled water. Known Issues Common Problems: Potential issues can include wear on the power valve mechanism, carburetor jetting sensitivity, exhaust valve carbon buildup, and general wear and tear on the two-stroke engine components requiring diligent maintenance. Electrical connector corrosion can also be an issue. Preventative Maintenance Power Valve Care: Regular cleaning and lubrication of the exhaust power valve is crucial for maintaining optimal engine performance. 📚 Vehicle History Brand Heritage Brand Focus: Aprilia has a strong heritage in Grand Prix racing and producing high-performance, often exotic, Italian motorcycles, particularly in the smaller displacement categories. Model Evolution Rs125 Legacy: The RS 125 has been a cornerstone of Aprilia's sportbike lineup for many years, consistently praised for its track-inspired styling and engaging ride, particularly its powerful...