🏷️ Basic Information Identification Make: Aprilia Model: Atlantic 125 Model Variant: Scooter Vehicle Type: Maxi-Scooter Covered Years: 2003, 2004, 2005, 2006 Codes Engine Code: M301M (likely Piaggio LEADER 125cc engine variant) 👋 Introduction Market Position Market Position: The Aprilia Atlantic 125 was positioned as a comfortable and stylish maxi-scooter, targeting urban commuters and leisure riders seeking a balance of performance, practicality, and European flair. It competed in a segment with strong offerings from Japanese and other European manufacturers. Competitive Analysis Competitive Analysis: Competitors included models like the Piaggio Beverly 125, Yamaha X-MAX 125, Honda Pantheon 125, and Kymco Grand Dink 125. The Atlantic aimed to differentiate through its sporty styling, Aprilia's brand heritage in performance motorcycles, and often a more premium feel. Key Features Key Features: Spacious underseat storage, comfortable riding position, relatively powerful 125cc engine for its class, attractive Italian styling, disc brakes front and rear, robust chassis design, often featuring a digital dash and analogue speedometer. 📋 Manual Details Coverage Areas Coverage Areas: Engine, Fuel System, Cooling System, Ignition System, Transmission, Clutch, Chassis, Suspension, Brakes, Electrical System, Bodywork, Troubleshooting, Maintenance Page Count Page Count: Not specified in product information (typical for this type of manual to be extensive, likely 200-400+ pages) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English (assumed based on product description phrasing, though confirmation would be ideal) Format Format: PDF 📖 Manual Coverage Systems Covered Systems Covered: Engine mechanicals (cylinder, piston, crankshaft, valves), lubrication, cooling, fuel injection (EFI) or carburetor system, exhaust, ignition timing, CVT transmission, final drive, front fork, rear shock absorbers, braking system (front disc, rear disc), electrical circuits, lighting, instrumentation, body panel removal and installation, seat, underseat storage, fairings. Procedures Included Procedures Included: Routine maintenance (oil changes, filter replacements, spark plug replacement, brake pad inspection/replacement, chain/belt adjustment), detailed disassembly and reassembly of all major components, troubleshooting diagnostic procedures for common faults, electrical system testing and repair, carburetor or fuel injection system adjustments and cleaning, suspension adjustments and rebuilds, brake system bleeding and service, component torque specifications, wiring diagrams, fluid capacity and specification charts. Technical Depth Technical Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Covers detailed diagnostic routines, component specifications, and repair procedures beyond basic owner's manual tasks. 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Print Quality Print Quality: Digital PDF, quality depends on original source. Typically includes high-resolution diagrams and clear text. Printable. Binding Type Binding Type: Not applicable (Digital PDF format) Paper Type Paper Type: Not applicable (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, liquid-cooled, single-cylinder Engine Displacement: 124.9 cc (approx.) Bore X Stroke: 57 mm x 48.6 mm (typical for Piaggio LEADER 125) Compression Ratio: 12.0:1 (typical for Piaggio LEADER 125) Performance Horsepower: Approx. 15 HP (11 kW) @ 9750 rpm (specification may vary slightly) Torque: Approx. 11.5 Nm (8.5 lb-ft) @ 8000 rpm (specification may vary slightly) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) or Carburetor (depending on exact sub-model and market; EFI is common for this era Piaggio LEADER engines) Fuel Type: Unleaded Gasoline (91 RON or higher) Engine Cooling Cooling System: Liquid-cooled Lubrication Lubrication System: Wet sump with forced lubrication 🔧 Transmission Standard Transmission Type: Automatic (CVT - Continuously Variable Transmission) Transmission Features: Dry clutch, belt drive, centrifugal automatic clutch Final Drive: Gear reduction 📐 Dimensions Exterior Length: Approx. 2020 mm (79.5 in) Width: Approx. 760 mm (29.9 in) Height: Approx. 1390 mm (54.7 in) (seat height likely around 770-790 mm) Weights Dry Weight: Approx. 142 kg (313 lbs) Gross Vehicle Weight Rating: Not specified, but typically around 300-320 kg for 125cc scooters Cargo Underseat Storage Capacity: Sufficient for one full-face helmet and other small items (typical for this class) 🛡️ Safety Features Ratings Safety Ratings: No formal crash test ratings like automobiles; relies on component quality and design for road safety. Active Features Active Safety Features: Disc brakes front and rear for reliable stopping power, stable chassis and suspension geometry, good visibility from the rider's position. Passive Features Passive Safety Features: Reinforced frame construction, leg shield for rider protection from elements and minor impacts, integrated lighting systems. Brakes Front Brake Type: Hydraulic disc brake (likely 260mm diameter) Rear Brake Type: Hydraulic disc brake (likely 220mm diameter) Wheels Tires Front Tire Size: 110/70-16 (typical) Rear Tire Size: 130/70-15 (typical) Wheel Type: Alloy wheels 💡 Technology Features Infotainment Infotainment Features: Basic instrumentation typically includes an analogue speedometer, tachometer (on some variants), fuel gauge, engine temperature warning light, and various indicator lights. No complex infotainment systems typical for this era and class. Driver Assistance Driver Assistance Features: None; this is a traditional scooter with no electronic driver aids beyond basic ABS if fitted to a specific higher-spec model (unlikely for standard 125). Connectivity Connectivity Features: None. Lighting Lighting System: Halogen headlight, incandescent tail light...