🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2006 Model Code: GSB00 Codes Vin Decoder Start Year: 2006 👋 Introduction Market Position Segment: Lightweight Sportbike / Supersport Target Audience: Enthusiasts seeking performance in a compact and agile package, often used for track days or spirited street riding. Competitive Analysis Key Competitors: Yamaha YZF-R125 (later models), Honda CBR125R, Suzuki GSX-R125 (later models), Kawasaki Ninja 125 (later models). Key Features Design Philosophy: Aggressive styling inspired by larger Aprilia RSV models, lightweight chassis, and a potent two-stroke engine. Engine Characteristics: Known for its high-revving nature and strong top-end power delivery characteristic of a performance two-stroke. Handling: Renowned for its sharp handling and agility, thanks to a capable chassis and suspension setup. Manual Value Proposition Benefit To Owner: Enables owners to perform maintenance and repairs themselves, saving money and ensuring their motorcycle remains in optimal condition. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Chassis: Yes Electrical System: Yes Fuel System: Yes Cooling System: Yes Brakes: Yes Suspension: Yes Bodywork: Yes Troubleshooting: Yes Page Count Estimated Pages: Hundreds Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Complete disassembly, assembly, and tuning of the Rotax 125cc two-stroke engine, including cylinder, piston, crankshaft, and gearbox. Fuel And Lubrication: Carburetor tuning (Dell'Orto PHBH 28 RD), fuel pump operation, oil injection system, and fuel tank maintenance. Ignition System: CDI ignition system, spark plug specifications, ignition timing, and stator/rotor inspection. Cooling System: Radiator, coolant type and capacity, water pump, thermostat operation, and bleeding procedures. Exhaust System: Expansion chamber inspection, muffler maintenance, and gasket replacement. Clutch System: Clutch operation, adjustment, friction plates, and pressure plates. Transmission: Gearbox disassembly, reassembly, gear inspection, and shift drum operation. Frame And Bodywork: Frame inspection, fairing removal and installation, seat, handlebars, and footpegs. Suspension Front: Front fork (Marzocchi) disassembly, service, seal replacement, and oil specifications. Suspension Rear: Monoshock rear suspension (Sachs) adjustment, linkage service, and shock absorber maintenance. Brakes Front: Brembo brake system, caliper service, pad replacement, disc inspection, and fluid replacement. Brakes Rear: Brembo brake system, caliper service, pad replacement, disc inspection, and fluid replacement. Wheels And Tires: Wheel bearing inspection, tire pressure, and recommended tire sizes. Electrical System Wiring: Complete wiring diagram, headlight, taillight, turn signals, horn, and instrument cluster. Battery And Charging: Battery specifications, charging system inspection, and voltage checks. Diagnostics And Troubleshooting: Common issues, symptom-based troubleshooting charts, and diagnostic procedures. Procedures Included Scheduled Maintenance: Recommended service intervals for oil changes, filter replacements, chain adjustments, and inspections. Engine Repair: Complete engine rebuild procedures, top-end and bottom-end overhaul. Carburetor Service: Carburetor cleaning, adjustment, jetting, and rebuilding. Suspension Service: Fork seal replacement, fork oil change, rear shock maintenance. Brake Service: Brake pad replacement, caliper service, bleeding the brake system, and disc inspection. Electrical Troubleshooting: Diagnosing and repairing electrical faults using wiring diagrams. Bodywork Repair: Fairing repair, minor bodywork adjustments, and component replacement. Tire Replacement: Procedure for removing and installing tires on the rims. Chain And Sprockets: Adjustment, cleaning, lubrication, and replacement of the drive chain and sprockets. Technical Depth Depth: Comprehensive, from basic maintenance to complete engine and chassis overhauls, suitable for both novice and experienced mechanics. 📊 Manual Specifications File Format File Type: PDF Compatibility: All PC-based Windows operating systems and Mac. Searchability: Likely text-searchable (standard for quality PDFs). Print Quality Printability: All pages are printable. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder Displacement: 124.8 cc (7.62 cu in) Bore X Stroke: 54 mm x 54.5 mm (2.13 in x 2.15 in) Valvetrain: Rotary reed valve intake, exhaust power valve (APCS - Aprilia Performance Coupling System). Compression Ratio: 12.1:1 Cooling Method: Liquid-cooled Engine Oil Type: Two-stroke engine oil (API TC or JASO FD compliant), separate oil for automatic injection system. Coolant Type: Ethylene glycol-based coolant with corrosion inhibitors (50% mixture with distilled water). Performance Horsepower: Approximately 15.6 HP @ 9,000 RPM (Limited version for A1 license), potentially higher in unrestricted versions (e.g., ~30 HP). Torque: Approximately 13.0 Nm (9.6 lb-ft) @ 8,000 RPM (Limited version). Fuel System Carburetor: Dell'Orto PHBH 28 RD Fuel Type: Unleaded gasoline (minimum 95 RON recommended for optimal performance) 🔧 Transmission Standard Type: 6-speed constant mesh Gear Ratios: 1st: 2.5, 2nd: 1.75, 3rd: 1.38, 4th: 1.14, 5th: 1.0, 6th: 0.875 (Typical ratios, may vary slightly) Clutch Type: Wet multi-plate, cable-operated Features Final Drive: Chain drive (520 pitch recommended) 📐 Dimensions Exterior Length: Approx. 1,990 mm (78.3 in) Width: Approx. 720 mm (28.3 in) Height: Approx. 1,145 mm (45.1 in) Wheelbase: Approx. 1,375 mm (54.1 in) Weights Dry Weight: Approx. 115 kg (253.5 lbs) Wet Weight: Approx. 135 kg (297.6 lbs) (Estimated) Payload Capacity: Not specified, designed for single rider primarily. 🛡️ Safety Features Ratings Crash Test Data: N/A (Motorcycle...