🏷️ Basic Information Identification Make: Aprilia Model: Atlantic Sprint Model Variant: 125 Product Type: Service and Repair Manual Download Codes Chassis Code Range: AP02 Engine Code Series: Rotax 125 2T 👋 Introduction Market Position Market Segment: Sporty 125cc scooter, positioned for urban commuting with a performance-oriented user base. Competitive Analysis Key Competitors: Piaggio Zip SP 125, Malaguti Phantom F12, Yamaha Aerox 50 (though larger engine), Gilera Runner 125. Key Features Design Philosophy: Combines aggressive styling with the practicality of a scooter, featuring a potent 2-stroke engine for its class. Target Audience: Enthusiasts seeking performance and reliability in a 125cc scooter, often involved in customization or performance tuning. 📋 Manual Details Coverage Areas Applicable Years: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Page Count Estimated Page Count: 300-400 Manual Type Manual Type: Comprehensive Service and Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete disassembly, inspection, repair, and reassembly of the 125cc 2-stroke engine. Cooling System: Radiator, coolant, hoses, thermostat, water pump maintenance and repair. Fuel System: Carburetor (Dell'Orto PHBH 28) overhaul, adjustment, fuel pump, fuel lines, and tank maintenance. Ignition System: CDI, spark plug, ignition coil, wiring, timing. Exhaust System: Expansion chamber, silencer, and associated components. Transmission: 6-speed gearbox, clutch (centrifugal automatic), maintenance and repair. Chassis Frame: Frame inspection, welding, alignment. Suspension Front: Telescopic fork maintenance, seals, oil change, adjustment. Suspension Rear: Monoshock absorber, linkage, swingarm maintenance and adjustment. Braking System Front: Hydraulic disc brake caliper, master cylinder, hoses, pads, fluid replacement. Braking System Rear: Hydraulic disc brake caliper, master cylinder, hoses, pads, fluid replacement. Wheels Tires: Wheel bearing replacement, tire mounting and balancing, rim specifications. Electrical System: Wiring diagrams, battery, starter motor, lighting, indicators, horn, switches. Instrumentation: Speedometer, tachometer, indicator lights, gauge troubleshooting. Bodywork Trim: Fairing removal and installation, seat, body panels, storage compartment. Procedures Included Routine Maintenance: Oil changes, filter replacement, spark plug checks, chain adjustment (if applicable to a different variant, but common to scooters), brake pad replacement. Troubleshooting: Diagnostic procedures for common starting, running, and electrical issues. Engine Rebuild: Detailed steps for top-end and bottom-end engine rebuilds. Suspension Service: Front fork oil changes and rear shock absorber inspection/replacement. Brake Bleeding: Proper procedure for bleeding hydraulic brake systems. Carburetor Tuning: Idle speed, main jet, pilot jet, needle clip adjustments. Electrical Diagnosis: Using multimeters and circuit testers for fault finding. Bodywork Repair: Panel alignment, minor cosmetic repairs. Technical Depth Depth: In-depth mechanical and electrical repair procedures, including specifications, tolerances, and torque values. Diagnostic Focus: Emphasis on identifying and rectifying common performance and operational issues specific to this model. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, printable pages with clear diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Searchability: Fully searchable text for quick access to information. ⚙️ Engine Specifications Primary Engine Engine Type: Two-stroke, single-cylinder Displacement: 124.9 cc Bore X Stroke: 54 mm x 54.5 mm Cooling System: Liquid-cooled Carburetor Model: Dell'Orto PHBH 28 Intake System: Reed valve induction Lubrication: Automatic oil injection (separate oil tank) Compression Ratio: Approx. 7.4:1 (at TDC) Performance Horsepower Rated: Approximately 15 HP (11 kW) @ 7,500 RPM Torque Rated: Approximately 13.5 Nm @ 7,000 RPM Fuel System Fuel Type: Unleaded gasoline (RON 95 recommended) Fuel Tank Capacity: 10 Liters 🔧 Transmission Standard Transmission Type: Automatic centrifugal clutch with V-belt variator Gear Ratios: Continuously Variable Transmission (CVT) with integrated reduction gears. Features Clutch Type: Centrifugal dry clutch Final Drive: Gear reduction 📐 Dimensions Exterior Length: Approx. 1930 mm Width: Approx. 730 mm Height: Approx. 1380 mm (to handlebars) Wheelbase: Approx. 1385 mm Weights Dry Weight: Approx. 136 kg Curb Weight: Approx. 146 kg (fully fueled) Cargo Underseat Storage: Sufficient for one full-face helmet. 🛡️ Safety Features Ratings Safety Certification: CE, EU homologation standards Active Features Braking System: Front and rear hydraulic disc brakes. Lighting: Halogen headlight, LED taillight, turn signals. Passive Features Frame Construction: Steel tube frame for structural integrity. Rider Ergonomics: Comfortable seating position for urban riding. 💡 Technology Features Infotainment Dashboard: Analog speedometer, tachometer, fuel gauge, coolant temperature warning light, indicator lights. Driver Assistance ABS: Not typically equipped on this model. Connectivity Connectivity Features: None (basic scooter design). 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000 km or annually. Specific grade recommended in manual. Gearbox Oil Change: Every 6,000 km or biennially. Specific grade recommended in manual. Air Filter Cleaning: Every 3,000 km, replace as needed. Spark Plug Replacement: Every 6,000 km or as per manual recommendation (e.g., NGK BR9EG). Brake Fluid Replacement: Every 2 years, DOT 4 recommended. Coolant Replacement: Every 2 years. Fluid Specifications Engine Oil Type: Typically a 2-stroke synthetic or semi-synthetic oil, specified in manual for injection system. Gearbox Oil Type: SAE 75W/90 or SAE 80W/90 GL-4...