🏷️ Basic Information Identification Make: Aprilia Model: Pegaso 655 Year: 1999 Codes Engine Code: Not specified in product information, likely a Rotax-derived unit. 👋 Introduction Market Position Positioning: A valuable resource for Aprilia Pegaso 655 owners and independent repair professionals seeking to maintain and repair their motorcycles. Competitive Analysis Competitors: Other OEM service manuals, Haynes, Clymer, or independent online repair forums and guides. Key Features Features: Comprehensive coverage, detailed diagrams, troubleshooting, ability to perform repairs independently, cost savings. 📋 Manual Details Coverage Areas Primary Coverage: Full service, repair, maintenance, and troubleshooting. Secondary Coverage: Electrical systems, wiring diagrams, chassis, body, and emissions. Page Count Estimated Page Count: Estimated 300-500 pages based on comprehensive coverage. Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine service, repair, disassembly, reassembly, top-end, bottom-end, cooling system, fuel injection, emission system, engine control system. Transmission: Transmission service and repair. Brakes: Brake system service and repair. Electrical: Complete electrical system diagnostics and repair, including wiring diagrams. Chassis Body: Chassis and body repair, suspension, steering, axle components. Procedures Included Maintenance: General maintenance, periodic lubrication, fluid checks and changes. Troubleshooting: Diagnostic procedures and troubleshooting guidance for common and complex issues. Repair: Step-by-step instructions for component disassembly, repair, and reassembly. Technical Depth Depth: Comprehensive, covering routine maintenance to complete engine rebuilds and electrical system diagnostics. 📊 Manual Specifications File Format File Format: PDF Software Requirements: Adobe PDF Reader, WinZip Compatibility: All Windows & Mac versions Print Quality Quality: Digital format, quality depends on original source scan. Binding Type Binding: Not Applicable (Digital Download) Paper Type Paper: Not Applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, four-stroke. (Specific engine code not provided, but Pegaso typically used Rotax 654cc or similar). Bore X Stroke: Typically around 100 mm x 82 mm for similar Rotax engines. Displacement: Approximately 654cc (based on typical Aprilia Pegaso engine configurations). Performance Horsepower: Estimated 48-50 HP at around 6700 RPM (typical for this engine size and era). Torque: Estimated 56-58 Nm at around 5000 RPM (typical for this engine size and era). Fuel System Fuel Delivery: Carbureted (likely Keihin CVK or similar twin carbs) or early fuel injection depending on specific sub-model. Fuel Type: Unleaded gasoline (RON 91 or higher recommended). Ignition Ignition Type: Electronic Ignition (CDI or digital). Cooling Cooling System: Liquid-cooled. 🔧 Transmission Standard Transmission Type: 5-speed manual constant mesh. Clutch Type: Wet multi-plate clutch. Features Drive Type: Chain drive. 📐 Dimensions Exterior Length: Approx. 2150 mm (varies slightly by model year). Width: Approx. 850 mm (at handlebars). Height: Approx. 1300 mm (seat height varies). Weights Dry Weight: Approx. 180-190 kg. Gross Vehicle Weight Rating: Not specified in product information, typically around 350-380 kg. Tires Front Tire Size: Typically 90/90-21. Rear Tire Size: Typically 130/80-17 or 140/80-17. Wheels Wheel Type: Spoked wheels, tubed tires. 🛡️ Safety Features Ratings Safety Features: Standard motorcycle safety features, ABS was an option on later models but unlikely for 1999. Active Features Braking System: Hydraulic disc brakes front and rear. Dual front discs common for this model. Passive Features Lighting: Headlight, taillight, turn signals, brake lights. 💡 Technology Features Infotainment Infotainment System: None (Basic analog gauges: speedometer, tachometer, odometer, trip meter, neutral indicator, oil pressure light, turn signal indicators). Driver Assistance Driver Assistance: None. Connectivity Connectivity: None. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 km or annually. Specific interval detailed in manual. Valve Clearance Interval: Typically every 6,000-10,000 km. Specific interval detailed in manual. Fluid Specifications Engine Oil Type: Semi-synthetic or synthetic 10W-40 or 20W-50 motorcycle-specific oil. Manual will specify exact API/JASO rating. Coolant Type: Ethylene glycol-based antifreeze, typically 50/50 mix with distilled water. Brake Fluid Type: DOT 4 or DOT 5.1 brake fluid. Known Issues Common Issues: Potential issues include stator failures, regulator/rectifier problems, carburation tuning, and general wear on suspension components due to age. Filter Part Numbers Oil Filter Part Number: Part numbers vary by manufacturer (e.g., HF152 Hiflofiltro, or OEM equivalent). Maintenance Tasks Included Tasks: Spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake pad inspection and replacement, tire pressure checks, coolant flush. 📚 Vehicle History Brand Heritage Heritage: Aprilia is an Italian manufacturer with a strong heritage in motorcycle racing and sportbike production. Model Evolution Evolution: The Pegaso line has evolved from the original 650cc Rotax-powered dual-sport into various iterations, including the 655 which saw engine updates and chassis refinements. The 1999 model represents a mature stage of the original design. Production Production Period: The Aprilia Pegaso 650/655 line was produced from the early 1990s through the early 2000s. 🏆 Awards & Recognition Recognitions Awards: No specific awards are noted for the 1999 model year of the Aprilia Pegaso 655 in this product description.