🏷️ Basic Information Identification Make: Aprilia Model: Atlantic Sprint Year: 1999 Codes Engine Code 250: M341M (250cc, Piaggio LEADER) Engine Code 500: M342M (460cc, Piaggio QUASAR) 👋 Introduction Market Position Segment: Premium maxi-scooter segment. Competitive Analysis Competitors 1999: Yamaha TMAX, Suzuki Burgman, Honda Silver Wing (though later models). Key Features Design Philosophy: Sporty handling combined with touring comfort and practicality. Engine Options: Availability of a 250cc and a larger 460cc (marketed as 500cc) engine variant. Body Style: Integrated bodywork, comfortable seating for rider and passenger, under-seat storage. 📋 Manual Details Coverage Areas Manual Coverage: Comprehensive service, repair, and maintenance for Aprilia Atlantic Sprint 250 and 500 models. Page Count Estimated Pages: 300+ Manual Type Type: Full Service Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, valve train, piston, crankshaft, lubrication system, cooling system. Engine Electrical: Ignition system, fuel injection system (EFI), starter system, charging system, ECU diagnostics. Transmission Drivetrain: Automatic CVT transmission, clutch, belt drive, final drive, gearbox. Brakes: Hydraulic brake system (front and rear discs), brake caliper service, master cylinder, brake lines, bleeding procedures. Suspension: Front telescopic forks, rear shock absorber(s), swingarm, suspension adjustment and service. Electrical System: Wiring diagrams, lighting system, horn, battery, fuses, relays, instrumentation, starting and charging circuits. Fuel System: Fuel tank, fuel pump, fuel filter, fuel injectors, fuel pressure regulation. Cooling System: Radiator, cooling fan, thermostat, coolant hoses, coolant specifications. Exhaust System: Exhaust pipes, muffler, catalytic converter (if applicable), gasket replacement. Chassis Bodywork: Frame, body panels, fairings, seat, handlebars, storage compartment, stands. Wheels Tires: Wheel specifications, tire types and sizes, mounting, balancing, valve stems. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, chain/belt adjustment, brake inspection. Troubleshooting: Diagnostic procedures for common and uncommon issues, fault code interpretation. Engine Repair: Complete engine disassembly, inspection, and reassembly. Transmission Repair: CVT unit overhaul, clutch assembly service, final drive servicing. Electrical Diagnostics: Wiring harness repair, component testing, electrical system troubleshooting. Brake System Service: Brake bleeding, caliper and master cylinder rebuild, pad replacement. Suspension Service: Fork seal replacement, shock absorber replacement, bearing service. Bodywork Repair: Fairing removal and installation, panel repair, cosmetic adjustments. Fuel System Cleaning: Injector cleaning, fuel pump replacement, fuel filter replacement. Technical Depth Depth: Expert-level; covers complete overhaul, advanced diagnostics, and component-level repair. 📊 Manual Specifications File Format File Type: PDF Print Quality Image Resolution: High-resolution for clear diagrams and text. Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine 250 Type: 4-stroke, 4-valve, SOHC, liquid-cooled, single-cylinder Displacement: 244.3 cc Bore X Stroke 250: 72 mm x 60 mm Power Output 250 Approx: Approx. 21.7 HP (16.2 kW) at 7500 rpm Torque Output 250 Approx: Approx. 22 Nm (16.2 lb-ft) at 6000 rpm Primary Engine 500 Type: 4-stroke, 4-valve, SOHC, liquid-cooled, single-cylinder Displacement: 460 cc Bore X Stroke 500: 92 mm x 69 mm Power Output 500 Approx: Approx. 34 HP (25.4 kW) at 6800 rpm Torque Output 500 Approx: Approx. 45 Nm (33.2 lb-ft) at 5500 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) by Magneti Marelli Fuel Type: Unleaded gasoline, minimum 95 RON Lubrication System Type: Wet sump Cooling System Type: Liquid-cooled 🔧 Transmission Standard Type: Automatic CVT (Continuously Variable Transmission) Drive: Belt drive to rear wheel Features Automatic Clutch: Yes, centrifugal clutch 📐 Dimensions Exterior Length Approx: 2140 mm Width Approx: 780 mm Height Approx: 1380 mm Weights Dry Weight 250 Approx: 180 kg Dry Weight 500 Approx: 187 kg Fuel Tank Capacity: 14 Liters (including 2L reserve) 🛡️ Safety Features Ratings Crash Test Ratings: N/A (motorcycle specific, not typically rated like cars) Active Features Braking System: Dual hydraulic disc brakes (front), single hydraulic disc brake (rear). Lighting: Halogen headlight, LED tail light, turn signals. 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer and tachometer, digital odometer, fuel gauge, clock, warning lights. Driver Assistance ABS: Not standard on 1999 models, check specific vehicle for optional ABS availability. Lighting Headlight Type: Halogen bulb 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000 - 5,000 km or annually, whichever comes first (refer to manual for precise interval). Air Filter Cleaning: Every 5,000 km (or more frequently in dusty conditions). Spark Plug Replacement: Every 10,000 - 15,000 km (specific plug type and gap crucial). Cvt Belt Inspection: Every 10,000 km; replacement recommended around 20,000 km. Fluid Specifications Engine Oil: SAE 5W-40 Synthetic Motorcycle Oil, API SG or higher, JASO MA (check manual for exact spec). Coolant: Ethylene glycol based coolant with corrosion inhibitors, 50/50 mix with distilled water. Brake Fluid: DOT 4 Hydraulic Brake Fluid (refer to manual for specific DOT rating). Gear Oil: SAE 75W/90 or 80W/90 API GL-4 Gear Oil (for final drive). Known Issues Common Problems: Potential for water ingress in electrical connectors, regulator/rectifier failure, CVT belt wear, stator issues....