🏷️ Basic Information Identification Make: Aprilia Model: Pegaso 655 Year: 1998 Product Type: Repair Service Manual 👋 Introduction Market Position Target Audience: Professional technicians and do-it-yourself mechanics with basic electrical and mechanical knowledge Competitive Analysis Manual Equivalence: Equivalent to factory service manuals and owner's manuals, providing factory-trained technician knowledge. Key Features Primary Benefit: Empowers owners to make informed decisions for maintenance and repair. Learning Style: Step-by-step guidance to teach repair and maintenance fundamentals. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair for Aprilia Pegaso 655 (1998 model year) Page Count Estimated Page Count: N/A (Digital PDF) Manual Type Manual Classification: Factory Service Manual / Workshop Manual / Repair Manual Language Language Of Manual: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine System: Engine disassembly, assembly, tuning, diagnostics, and repair Fuel System: Carburetor tuning, fuel pump, fuel lines, fuel tank maintenance Ignition System: Ignition timing, spark plugs, coils, CDI unit Cooling System: Radiator, fan, coolant, hoses, thermostat Exhaust System: Exhaust pipe, muffler inspection and replacement Transmission System: Clutch operation, gearbox disassembly and assembly, gear oil Suspension System: Front forks, rear shock absorber, linkage maintenance and adjustment Braking System: Brake fluid, caliper service, master cylinder, brake lines, rotor maintenance Wheel And Tire: Wheel bearing service, tire pressure, wheel balancing Electrical System: Wiring diagrams, battery, starter, alternator, lighting system, fuses Chassis And Frame: Frame inspection, steering head bearing maintenance Bodywork And Fairings: Fairing removal and installation, seat, tank panel care Procedures Included Maintenance Procedures: Scheduled maintenance, oil changes, filter replacements, lubrication Troubleshooting Guides: Diagnostic procedures for common problems and system failures Repair Procedures: Step-by-step instructions for component repair and replacement Disassembly And Assembly: Detailed guides for taking apart and reassembling various vehicle components Cleaning And Reinstallation: Guidelines for cleaning parts and proper reinstallation Technical Depth Depth Of Coverage: Full factory-level repair and maintenance, suitable for professional technicians and advanced DIY enthusiasts 📊 Manual Specifications File Format Document Format: PDF Print Quality Printable Quality: Full Printable Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Accessibility Zoom Functionality: YES (Zoom IN/OUT) Delivery Method Delivery Type: Instant Download Software Requirements Required Software: Adobe PDF Reader & WinZip Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, four-stroke, air-cooled (Likely Rotax 654cc derived or similar) Engine Displacement: 654cc (estimated, based on model designation) Performance Horsepower: Approx. 45-50 HP (estimated, specific figures vary by tune) Torque: Approx. 50-55 Nm (estimated) Fuel System Carburetor Type: Single 34-36mm CV carburetor (likely Mikuni or Keihin, specific model to be detailed in manual) Ignition System Ignition Type: Electronic Ignition (CDI) 🔧 Transmission Standard Transmission Type: 5-speed constant mesh gearbox Features Clutch Type: Wet, multi-plate clutch Fluid Specifications Gear Oil Type: API GL-4 SAE 80W/90 gear oil (typical for this era, specific viscosity to be confirmed in manual) 📐 Dimensions Exterior Wheelbase: Approx. 1450 mm (145 cm) (typical for the Pegaso series) Weights Dry Weight: Approx. 170 kg (170000 g) (depending on configuration) Fuel Tank Capacity: Approx. 22 Liters (22000 ml) 🛡️ Safety Features Active Features Braking System Front: Single disc brake with 2-piston caliper (typically Brembo) Braking System Rear: Single disc brake with single-piston caliper Passive Features Lighting: Halogen headlight, LED taillight (common for the era) 💡 Technology Features Infotainment Instrument Cluster: Analog speedometer, tachometer, fuel gauge, indicator lights. Driver Assistance ABS: Anti-lock Braking System (ABS) was likely an optional feature or not available on all variants for this model year. Manual will confirm. Connectivity Connectivity Features: N/A (No integrated smartphone connectivity typical for this era). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 km or annually (specific interval in manual) Valve Clearance Check: Typically every 6,000-10,000 km (specific interval in manual) Fluid Specifications Engine Oil Type: SAE 10W-40 or 20W-50 motorcycle-specific engine oil, meeting JASO MA standards (specific grade to be confirmed) Brake Fluid Type: DOT 4 or DOT 5.1 (DOT 4 is more common, specific requirement in manual) Coolant Type: Ethylene glycol based coolant, mixed 50/50 with distilled water (specific type and mixture in manual) Known Issues Typical Wear Items: Clutch plates, brake pads, fork seals, carburetor jets/needle Potential Electrical Gremlins: Wiring harness connectors can corrode over time, requiring cleaning or replacement. Stator output can degrade. Engine Specific Concerns: Carbon buildup in the single-cylinder engine can affect performance; regular de-carbonizing is beneficial. 📚 Vehicle History Brand Heritage Manufacturer: Aprilia is an Italian manufacturer renowned for its sport motorcycles and scooters. Model Evolution Pegaso Lineage: The Pegaso line has historically been Aprilia's dual-sport or adventure touring offering, often featuring single-cylinder engines. Production Manufacturing Origin: Italy