🏷️ Basic Information Identification Make: Aprilia Model: Leonardo 125 Year: 2003 👋 Introduction Market Position Segment: Lightweight scooter, often positioned as an urban commuter with a sporty flair. Competitive Analysis Competitors 2003: Honda SH125, Piaggio X9 Evolution 125, Yamaha Majesty 125, Kymco Grand Dink 125 Key Features Design Philosophy: Combines Italian design flair with practical urban mobility, offering a comfortable ride and a degree of sportiness for its class. Target Audience: Young riders, city commuters, individuals seeking an accessible and stylish form of personal transportation. 📋 Manual Details Coverage Areas Primary Focus: Full Service Repair and Maintenance Page Count Estimated Pages: Likely 200-400 pages (typical for a comprehensive service manual) Manual Type Type: Service/Repair Manual Language Language: English (assumed based on product name and typical market) Format Format: Digital (PDF) - common for online sales 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures Fuel System: Carburetor service and adjustment, fuel pump, fuel lines, and fuel tank maintenance Ignition System: Spark plug, ignition coil, CDI unit, and timing checks Cooling System: Radiator, fan, hoses, thermostat, and coolant specifications Exhaust System: Muffler, exhaust pipe inspection and replacement Transmission Drivetrain: CVT (Continuously Variable Transmission) service, belt replacement, roller weights, clutch inspection Brakes: Front and rear brake caliper service, brake pads, brake fluid, bleeding procedures, disc inspection Suspension: Front fork (telescopic) service, rear shock absorber inspection and replacement Steering: Handlebar, steering head bearings, and related components Electrical System: Wiring diagrams, battery, starter motor, charging system (alternator/stator, regulator/rectifier), lighting, switches, fuses Bodywork Chassis: Fairings, body panels, seat, frame inspection Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment (if applicable to model variant), lubrication points Troubleshooting: Diagnostic procedures for common starting, running, and electrical issues Repair Procedures: Step-by-step guides for component replacement and repair Rebuilds: Engine and transmission rebuild instructions Restoration: Guidance for refurbishment and restoration projects Technical Depth Depth: Comprehensive: Covers everything from basic maintenance to advanced internal engine repairs and electrical diagnostics. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Quality: High-resolution scans ensuring clarity of diagrams and text Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, liquid-cooled, single-cylinder Displacement: 124.9 cc Bore X Stroke: Approx. 52.4 mm x 57.8 mm (typical for this displacement range) Valve Train: SOHC (Single Overhead Camshaft), 2 valves per cylinder Performance Horsepower: Approximately 14-15 HP (at crankshaft, dependent on specific tuning) Torque: Approximately 10-11 Nm (at crankshaft, dependent on specific tuning) Fuel System Carburetor: Likely a Mikuni or Keihin 26-28mm CV (Constant Velocity) carburetor Fuel Capacity: Approximately 7-8 Liters Lubrication Oil Type Specification: SAE 10W-40 API SG or higher (recommended, check manual for precise spec) Oil Capacity With Filter: Approximately 0.9 - 1.0 Liters (check manual for precise capacity) 🔧 Transmission Standard Type: Automatic CVT (Continuously Variable Transmission) Features Drive Type: Belt drive to rear wheel Clutch Type: Automatic centrifugal clutch Fluid Specifications Cvt Fluid Type: Specific CVT oil or equivalent (refer to manual for exact specification, typically a high-quality scooter transmission fluid) 📐 Dimensions Exterior Length: Approx. 1930 mm Width: Approx. 730 mm Height: Approx. 1300 mm Wheelbase: Approx. 1330 mm Weights Dry Weight: Approx. 140-150 kg Gross Vehicle Weight Rating: Typically around 300-320 kg Cargo Underseat Storage: Sufficient for a full-face helmet and small items 🛡️ Safety Features Ratings Crash Test Data: Not typically subject to formal automotive crash testing; focus is on rider protection through design and braking systems. Active Features Braking System: Front disc brake, rear disc brake (specific diameters: Front approx. 260mm, Rear approx. 220mm) Tires Front: Tubeless, typically 120/70-12 Tires Rear: Tubeless, typically 130/70-12 Passive Features Lighting: Halogen headlight, LED taillight/brake light, turn signals Frame Construction: Steel tube frame for rigidity and stability 💡 Technology Features Infotainment Dashboard: Analog speedometer, tachometer, fuel gauge, coolant temperature warning light, indicator lights. Driver Assistance ABS: Anti-lock Braking System (ABS) was not a standard or common option on the Leonardo 125 in 2003. Connectivity Connectivity Features: None (basic transportation model). 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000 - 4,000 km or annually, whichever comes first (check manual for exact interval). Air Filter Cleaning/Replacement: Inspect every 3,000 km, clean or replace as needed, typically every 6,000 - 10,000 km. Spark Plug Replacement: Every 6,000 - 10,000 km (specific plug type and gap required, consult manual). Cvtv Belt Inspection/Replacement: Inspect every 6,000 km, replace approximately every 10,000 - 15,000 km (depending on wear and usage). Brake Fluid Flush: Every 2 years or as specified by manual. Fluid Specifications Coolant Type: Ethylene glycol-based coolant with anti-corrosion additives (typically a 50/50 mix with distilled water). Consult manual for exact type. Brake Fluid Type: DOT 4 recommended (check manual for precise specification). Known Issues Common Wear Items: CVT belt, front fork seals,...