🏷️ Basic Information Identification Make: Aprilia Model: Leonardo 125 Year: 2003 Codes Model Code Prefix: AP06 👋 Introduction Market Position Vehicle Segment: Premium 125cc scooter, often positioned as a stylish and sporty urban commuter Target Audience: Young riders, urban commuters seeking a blend of performance and style Competitive Analysis Key Competitors: Piaggio Skipper, Honda Pantheon, Yamaha Majesty 125, Kymco Xciting 125 Key Features Design: Aggressive styling, aerodynamic fairing, modern instrument panel Performance: Sporty handling, agile for city navigation, capable of highway speeds (within 125cc class limitations) Practicality: Under-seat storage, comfortable seating position 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive repair and service Secondary Coverage: Maintenance, troubleshooting, electrical systems, engine overhaul, chassis components Page Count Estimated Pages: 300+ Manual Type Type: Workshop Service Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Cylinder head, valves, piston, crankshaft, connecting rod, lubrication system, cooling system, starting system, ignition system Engine Electrical: Ignition timing, spark plugs, wiring diagrams, ECU diagnostic codes, battery, charging system Fuel System: Carburetor (Mikuni BS26 or similar), fuel pump, fuel lines, fuel filter, idle speed control Transmission: Automatic Continuously Variable Transmission (CVT), clutch operation, variator maintenance, torque converter, final drive Brakes: Front disc brake (caliper, master cylinder, brake fluid), rear drum brake, brake lines, parking brake Suspension: Front telescopic forks (oil level, seal replacement, spring preload), rear shock absorber, linkage maintenance Steering: Handlebar assembly, steering stem bearings, linkage inspection Electrical System: Lighting circuits (headlight, taillight, turn signals), horn, starter motor, battery charging, fuses, relays, instrument cluster Bodywork: Panel removal and installation, fairings, seat, storage compartments, lighting fixtures Procedures Included Maintenance: Oil changes, filter replacements (oil, air), spark plug replacement, brake fluid flush, coolant checks, valve clearance adjustment Troubleshooting: Diagnostic flowcharts for starting issues, poor performance, electrical faults, braking problems Repair: Engine rebuild, carburetor tuning, CVT belt replacement, brake system overhauls, suspension fork servicing, electrical component repair Installation: Component replacement (e.g., brake pads, starter motor, ignition coil), accessory installation guidelines Technical Depth Depth Level: Comprehensive: from routine maintenance to complete engine and transmission overhauls Diagnostic Capability: Detailed diagnostic procedures and fault code interpretation Special Tools: Identification and usage instructions for specialized tools 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Resolution: High-resolution scans for clear text and diagrams Searchability: Searchable text for quick information retrieval Binding Type Binding For Print: N/A (Digital Format) Paper Type Paper For Print: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, liquid-cooled, single-cylinder Engine Displacement: 124 cc Bore X Stroke: 52 mm x 58.6 mm (Approximate) Compression Ratio: 10.5:1 (Typical) Valve Train: SOHC, 4 valves per cylinder Performance Horsepower Max: Approx. 14-15 HP @ 9,000 RPM (Varies slightly by market/tuning) Torque Max: Approx. 11-12 Nm @ 7,500 RPM (Varies slightly) Fuel System Carburetor Model: Mikuni BS26 (or equivalent Japanese carburetor) Fuel Type: Unleaded gasoline (91 RON or higher) Fuel Tank Capacity: Approx. 9 liters 🔧 Transmission Standard Type: Automatic Continuously Variable Transmission (CVT) Drive System: Belt drive to rear wheel Features Clutch Type: Centrifugal automatic clutch Transmission Fluid: Specific scooter transmission oil (e.g., SAE 80W-90 gear oil for final drive) 📐 Dimensions Exterior Length: Approx. 1,900 mm Width: Approx. 700 mm Height: Approx. 1,250 mm Wheelbase: Approx. 1,350 mm Weights Dry Weight: Approx. 130 kg Gross Vehicle Weight Rating: Approx. 290 kg (including rider and luggage) Cargo Underseat Storage: Sufficient for one full-face helmet and small items 🛡️ Safety Features Ratings Crash Test Ratings: Not applicable for scooters in the same manner as automobiles; focus on component integrity Active Features Braking System: Front hydraulic disc brake, rear drum brake for effective stopping power Lighting: Halogen headlight, LED taillight and brake light, front and rear turn signals Passive Features Frame Construction: Steel underbone frame for rigidity and stability Tires: Tubeless tires for improved puncture resistance (e.g., 120/70-14 front, 140/60-14 rear) 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer, tachometer, fuel gauge, coolant temperature gauge, indicator lights (turn signals, high beam, oil pressure) Driver Assistance ABS: ABS was not a standard feature on the 2003 Leonardo 125 model Connectivity Connectivity Features: None typical for this model year; focus on mechanical and electrical systems. 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000 - 4,000 km or annually Oil Filter Replacement: Every engine oil change Air Filter Cleaning Replacement: Every 5,000 - 6,000 km (cleaning), replacement as needed Spark Plug Replacement: Every 8,000 - 10,000 km Valve Clearance Adjustment: Every 10,000 - 12,000 km Cvt Belt Inspection Replacement: Inspect every 8,000 km, replace every 15,000 - 20,000 km Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-40 synthetic or semi-synthetic motorcycle oil Engine Oil Capacity: Approx. 1.4 - 1.6 liters (with filter change) Coolant Type: Ethylene glycol-based antifreeze with corrosion inhibitors, mixed 50/50 with distilled water Brake Fluid Type: DOT 4 hydraulic...