🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2001 Engine Variant: Rotax 122 Codes Chassis Code: AP8114000 Engine Code: Rotax 122 👋 Introduction Market Position Target Audience: Owners and technicians working on the Aprilia RS125 (2001 model) seeking detailed repair and maintenance information. Value Proposition: Provides expert-level guidance to maintain and repair the iconic Aprilia RS125, ensuring optimal performance and longevity. Competitive Analysis Manual Type Comparison: Distinguished from owner's manuals by its in-depth mechanical and electrical repair procedures. Positioned as a professional-grade workshop manual. Key Features Expert Guidance: Content developed for professional mechanics, offering trusted advice and procedures. Comprehensiveness: Covers all major systems and repair tasks, making it a complete resource. 📋 Manual Details Coverage Areas Title: Aprilia RS125 RS125 2001 Service Repair Workshop Manual Description: Comprehensive service and repair instructions for mechanics and enthusiasts. Page Count Page Count: Estimated 300-400 pages (typical for this type of manual) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine: Detailed disassembly, assembly, tuning, and troubleshooting of the Rotax 122 two-stroke engine, including cylinder, piston, crankshaft, bearings, seals, carburetor, and exhaust system. Cooling System: Radiator, coolant hoses, water pump, thermostat, and bleeding procedures. Fuel System: Fuel tank, fuel lines, petcock, fuel pump (if applicable), and carburetor adjustment (Dell'Orto PHBH/PHBL). Ignition System: CDI, ignition coil, spark plug, timing, and stator/rotor inspection. Transmission: Clutch assembly, gearbox, gear ratios, shift mechanism, and gearbox oil specifications. Chassis Frame: Frame inspection, disassembly, and reassembly. Suspension Front: Telescopic front fork (e.g., Marzocchi or Paioli), oil levels, seals, damping adjustments, and rebuild procedures. Suspension Rear: Monoshock rear suspension, swingarm, linkage system, shock absorber adjustments, and rebuild procedures. Brakes Front: Brake caliper, master cylinder, brake lines, brake pads, brake discs, and bleeding procedures. Brakes Rear: Brake caliper, master cylinder, brake lines, brake pads, brake disc, and bleeding procedures. Wheels Tires: Wheel bearing inspection and replacement, tire pressures, and wheel balancing. Electrical System: Wiring diagram, battery, charging system (alternator), lighting, horn, starter motor, and switches. Bodywork Fairings: Fairing removal and installation, seat, fuel tank cover, and other body panels. Lubrication System: Automatic oil injection system (Autolube) or pre-mix ratio specifications. Procedures Included Preventative Maintenance: Regular service checks, oil changes, filter replacements, chain adjustment, and general inspection guidelines. Troubleshooting: Diagnosis of common problems, identifying causes, and step-by-step solutions. Engine Overhaul: Complete engine rebuild procedures, including bore sizing, piston fitting, and crankshaft balancing. Carburetor Tuning: Jetting, float height adjustment, idle speed setting, and mixture screw adjustments for optimal performance. Suspension Rebuild: Front fork and rear shock absorber disassembly, seal replacement, and oil filling. Brake System Service: Brake bleeding, pad replacement, caliper service, and master cylinder overhaul. Electrical Diagnostics: Testing of components, continuity checks, and fault finding using the wiring diagram. Wheel Alignment: Steering head bearing adjustment and checking for proper wheel alignment. Technical Depth Depth: Comprehensive, covering everything from basic adjustments to complete engine and chassis overhauls. Suitable for professional mechanics and advanced DIY enthusiasts. Diagnostic Tools: While not always explicitly stated, the manual will provide specifications for measurements (e.g., compression, clearances) and troubleshooting guides that imply the use of basic diagnostic tools like multimeters, feeler gauges, and compression testers. 📊 Manual Specifications File Format File Format: PDF Searchability: Likely text-searchable PDF for easy navigation of topics. Print Quality Print Quality: High-resolution scans or original digital files, ensuring clarity of diagrams and text. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Liquid-cooled, two-stroke, single-cylinder with reed valve induction and Aprilia's 'Rotax 122' designation. Bore X Stroke: 54 mm x 54.5 mm Displacement: 124.8 cc Compression Ratio: 12.0:1 (typical, may vary slightly) Cylinder Design: Chrome-plated cylinder bore. Performance Horsepower: Approx. 30-33 HP (for restricted versions, full power versions can exceed this) Torque: Approx. 2.0-2.2 kgf-m (14.5-15.9 lb-ft) Cooling Method: Liquid Cooling Fuel System Carburetor: Dell'Orto PHBH 28 or PHBL 26 (depending on market and version), often with electric start activation. Fuel Type: Unleaded gasoline (RON 95 recommended) Oil Delivery: Automatic oil injection system (Autolube) or pre-mix (check specific model variant). Air Filter Type: Paper element, typically housed in an airbox. 🔧 Transmission Standard Type: 6-speed constant mesh sequential gearbox. Clutch: Wet, multi-plate clutch, hydraulically operated. Optional Optional Features: N/A for this model year. Features Gear Ratios: Specific gear ratios will be detailed in the manual, crucial for performance tuning and understanding engine behavior at different speeds. Final Drive: Chain drive, with specific chain pitch (e.g., 520) and recommended sprocket ratios. Gearbox Oil: Manual will specify type and capacity, typically SAE 75W/90 or similar API GL-4 gear oil. 📐 Dimensions Exterior Length: Approx. 1940 mm (76.4 in) Width: Approx. 740 mm (29.1 in) Height: Approx. 1060 mm (41.7 in) Wheelbase: Approx. 1345 mm (53.0 in) Weights Dry Weight: Approx....