🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 1999-2003 Codes Chassis Code: RP (Represents the generation of the RS125) Generation Generation: Second generation RS125 (characterized by the frame and bodywork design) 📋 Manual Details Coverage Areas Covered Components: Engine, Chassis, Electrical System, Bodywork, Suspension, Brakes, Wheels, Exhaust System, Fuel System, Cooling System, Transmission, Controls, Instruments, and more. Page Count Estimated Pages: Likely extensive, as it covers parts diagrams for multiple model years. Estimated 200-400 pages. Manual Type Type: Parts Diagrams / Exploded Views Language Language: English Format File Format: PDF Quality Source Quality: Factory ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder Displacement: 124.8 cc (approx.) Bore X Stroke: 54 mm x 54.5 mm (typical for this engine) Cooling System: Liquid-cooled Engine Designation: Rotax 122 (common engine used in various Aprilia models of this era) Performance Horsepower: Approx. 30-34 HP (varies by market and specific tuning) Torque: Approx. 2.3 - 2.5 kgf-m (varies by market and specific tuning) Ignition System: Digital electronic ignition Fuel System Carburetor: Dell'Orto PHBH 28 (common specification, may vary slightly) Fuel Type: Unleaded gasoline (minimum 95 RON recommended) Oil System Lubrication: Pre-mix (oil injected into fuel) or separate oil injection system 🔧 Transmission Standard Gearbox: 6-speed constant mesh Features Clutch: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 1950 mm Width: Approx. 700 mm Height: Approx. 1130 mm Wheelbase: Approx. 1370 mm Seat Height: Approx. 820 mm Weights Dry Weight: Approx. 130 kg Fuel Tank Capacity: Approx. 12 liters 🛡️ Safety Features Features Brakes Front: Single disc with dual-piston caliper (typically 320mm disc) Brakes Rear: Single disc with single-piston caliper (typically 220mm disc) Front Suspension: Telescopic forks with adjustable pre-load and rebound damping (e.g., Marzocchi or Showa) Rear Suspension: Monoshock with adjustable pre-load, rebound, and compression damping (e.g., Sachs or Paioli) Tires Front: 110/70-17 Tires Rear: 140/70-17 Lighting System: Halogen headlight, LED tail light, turn signals. Frame: Aluminum alloy twin-spar frame 🔧 Maintenance Service Intervals Oil Change Recommendation: Refer to specific model year service manual. Typically every 2,000-3,000 km. Spark Plug Replacement: Refer to specific model year service manual. Typically every 5,000-8,000 km. Air Filter Cleaning: Regularly, depending on riding conditions. Recommended every 1,000-2,000 km. Chain Lubrication And Adjustment: Regularly, every 500-1000 km and after riding in wet conditions. Fluid Specifications Coolant Type: Ethylene glycol-based coolant with anti-corrosion additives (mix 50/50 with distilled water). Brake Fluid Type: DOT 4 Engine Oil Type 2 Stroke: High-quality 2-stroke synthetic or semi-synthetic oil, specifically formulated for high-performance motorcycles. Fork Oil Type: Motorcycle fork oil with appropriate viscosity (e.g., SAE 10W, refer to specific manual for exact type).