🏷️ Basic Information Identification Make: Aprilia Model: Pegaso 650 Years Covered: 1997, 1998, 1999, 2000 Codes Engine Code Family: Rotax 655 👋 Introduction Market Position Segment: Dual-sport / Adventure Motorcycle Target Audience: Owners and mechanics seeking in-depth service information for the Aprilia Pegaso 650 from the late 1990s. Competitive Analysis Competitors: BMW F650GS (funduro era), Suzuki DR650, Kawasaki KLR650, Honda Transalp. Key Features Manual Value: Genuine factory service data for accurate maintenance and repairs, covering both chassis and the specific Rotax 655 engine. Visual Aid Quality: Hundreds of photos demonstrating complete disassembly and reassembly procedures. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual & Engine Rotax 655 Repair Manual Page Count Total Pages: 460 Chassis Engine Pages: 311 Engine Rotax Pages: 149 Language Language: English Format File Type: PDF (Zip Archive) 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly and reassembly, lubrication system, cooling system, fuel system (carburetor, fuel pump, fuel tank), ignition system, exhaust system, engine management (if applicable), internal engine components (pistons, rings, crankshaft, camshafts, valves). Chassis Systems: Frame, suspension (front forks, rear shock absorber), steering system, braking system (front and rear brakes, hydraulic lines), wheels and tires, electrical system (wiring diagrams, battery, lighting, ignition, starter, charging system), drive chain and sprockets. Procedures Included Maintenance Procedures: Oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement, brake fluid flush, coolant flush, valve clearance adjustment. Repair Procedures: Engine top-end rebuild, engine bottom-end rebuild, carburetor overhaul, fork seal replacement, shock absorber service, brake caliper overhaul, electrical component diagnosis and repair, clutch replacement, starter motor service. Troubleshooting: Diagnostic guides for common engine and electrical issues, performance problems, starting difficulties, and braking concerns. Technical Depth Depth Of Coverage: Comprehensive factory-level detail suitable for professional mechanics and experienced DIY enthusiasts. Includes torque specifications, special tool requirements, and detailed diagrams. 📊 Manual Specifications File Format Print Quality: High Quality Printability: Fully Printable Binding Type Binding Type: Digital PDF (Zip) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, four-stroke Engine Displacement: 652 cc Engine Manufacturer: Rotax Engine Code: Rotax 655 Bore X Stroke: 100 mm x 83 mm (approx.) Compression Ratio: 9.5:1 (typical) Performance Horsepower Output: Approx. 48 HP @ 6500 RPM (varies by specific model/market) Torque Output: Approx. 5.8 kgf·m (57 Nm) @ 5000 RPM (varies by specific model/market) Fuel System Fuel Delivery: Carburetor (e.g., Mikuni BST40 twin-choke) Fuel Type: Unleaded gasoline Cooling System Cooling Method: Liquid-cooled 🔧 Transmission Standard Transmission Type: 5-speed manual Clutch Type: Wet, multi-plate Features Final Drive: Chain drive 📐 Dimensions Exterior Length: Approx. 2200 mm (varies slightly) Width: Approx. 850 mm (at handlebars) Height: Approx. 1300 mm (to top of screen) Weights Dry Weight: Approx. 180 kg Wet Weight: Approx. 195 kg (fully fueled) Fuel Tank Capacity: 22 Liters 🛡️ Safety Features Ratings Safety Standards: Manufacturer specific, adherence to relevant European/international motorcycle safety standards of the era. Active Features Braking System: Hydraulic disc brakes, front and rear. Specific caliper configurations and disc sizes are detailed in the manual. Lighting: Headlight, taillight, brake lights, turn signals. Wiring and bulb specifications covered. Passive Features Frame Construction: Steel trellis frame designed for durability and rigidity. 💡 Technology Features Infotainment Infotainment System: Not applicable for this model; basic analog instrumentation. Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Features: N/A Electrical System Charging System: Alternator, rectifier/regulator. Detailed diagrams for diagnosis and repair are present in the manual. Ignition System: Electronic ignition (CDI or similar). Manual provides specifications for spark plugs and ignition timing. 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific mileage/time recommendations (typically 5,000-7,500 km or annually). Valve Clearance Check: Refer to manual for specific mileage/time recommendations (typically 10,000-15,000 km). Chain Adjustment Interval: Regular checks recommended, typically every 1,000-2,000 km or as needed based on slack. Fluid Specifications Engine Oil Type: API SG/SH/SJ, JASO MA compliant motorcycle oil, SAE 10W-40 or 15W-50 (refer to manual for exact specifications and seasonal recommendations). Engine Oil Capacity: Approx. 2.4 Liters (with filter change). Coolant Type: Ethylene glycol-based antifreeze, mixed with distilled water (typically 50/50 ratio). Refer to manual for specific formulation. Brake Fluid Type: DOT 4 hydraulic brake fluid. Known Issues Common Wear Items: Fork seals, steering head bearings, wheel bearings, voltage regulator (can be a point of failure on older bikes), carburetor diaphragms. Engine Reliability: The Rotax 655 is generally considered a robust engine, but proper maintenance is crucial. Early models might have had minor electrical gremlins or wear on specific components. 📚 Vehicle History Brand Heritage Brand Origin: Aprilia is an Italian manufacturer known for its performance motorcycles, particularly in the off-road and sportbike segments. Model Evolution Pegaso Lineage: The Pegaso line aimed to offer versatile, adventure-capable motorcycles. The 650cc models utilized the robust Rotax engine, sharing lineage with other manufacturers. Production Manufacturing Location: Italy...