This manual provides comprehensive service and repair information for the XS650 motorcycle, covering all styles from the 1978 through 1981 model years. The XS650 is a classic parallel-twin motorcycle renowned for its reliability and enduring appeal. This workshop service repair manual, written in English, offers factory-level detail for owners and mechanics alike, ensuring accurate and complete maintenance and repair procedures for this iconic model. This workshop service repair manual is designed to be an essential technical resource, offering in-depth, professional quality details for every aspect of the XS650. It covers a wide range of systems including the fuel system, engine top end, clutch, lubrication system, transmission, brakes, suspension, steering, frame, and electrical system. With step-by-step instructions, troubleshooting guides, and hundreds of illustrations, this manual empowers both do-it-yourself owners and experienced technicians to effectively maintain, diagnose, and repair their motorcycles. 🏷️ Basic Information Identification Make: Yamaha Model: XS650 Model Variant: All Styles Covered Years Covered: 1978, 1979, 1980, 1981 Vehicle Type: Motorcycle 👋 Introduction Market Position Market Position: Essential technical resource for owners and mechanics of the Yamaha XS650 motorcycle, a classic parallel-twin motorcycle known for its versatility and enduring appeal. Value Proposition: An inexpensive way to keep your vehicle working properly by providing comprehensive, factory-quality service information. Competitive Analysis Competitive Analysis: This manual offers factory-level documentation, providing a crucial advantage over generic repair guides or fragmented online information for owners seeking accurate and complete maintenance and repair procedures for their specific model years. Information Source: Official full factory service repair manual, ensuring accuracy and completeness. Key Features Key Features: Comprehensive coverage, detailed step-by-step instructions, hundreds of photos/illustrations, clear troubleshooting guidance for electrical systems, digital download convenience, complete printability. 📋 Manual Details Coverage Areas Coverage Areas Overview: Comprehensive service and repair information for the Yamaha XS650 (1978-1981), suitable for both do-it-yourself owners and professional mechanics. Page Count Estimated Page Count: Hundreds of pages (exact count not specified, but indicated as extensive) Content Structure: Organized into chapters with numbered instructions, notes, cautions, warnings, and numbered table of contents for easy navigation. Manual Type Manual Type: Workshop Service Repair Manual Target Audience: Do-it-yourself owners and experienced mechanics. Language Language: English Format Format: PDF Download Digital Delivery Method: Instant download link provided on the checkout page after payment. Digital Storage Options: Can be saved to hard drive or burned to CD-ROM. 📖 Manual Coverage Systems Covered Systems Covered: General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix. Electrical System Detail: Covers troubleshooting and repair of the electrical system, including ignition, charging, lighting, starting, and accessory circuits, with detailed wiring diagrams. Fuel System Detail: Covers fuel tank, petcock, fuel lines, and detailed carburetor service, adjustment, and synchronization. Brakes Detail: Comprehensive coverage of front and rear brake systems, including hydraulic components, pads, calipers, and master cylinders. Suspension Detail: Detailed instructions for front fork service, including oil changes and seal replacement, and rear shock absorber maintenance. Procedures Included Procedures Included: Step-by-step repair and service procedures based on complete disassembly, troubleshooting, diagnostics, maintenance, and overhaul for all covered systems. Engine Rebuild Procedures: Includes procedures for complete engine disassembly, inspection, repair, and reassembly of all internal engine components, including crankshaft, transmission, clutch, and top-end. Frame And Suspension Repair: Detailed instructions for frame inspection, repair, front fork overhaul, rear shock absorber servicing, and alignment. Troubleshooting Guides: Integrated troubleshooting sections for common problems across all systems, with specific focus on electrical system diagnostics. Technical Depth Technical Depth: In-depth, professional quality, factory-level detail covering everything from basic maintenance to complex repair and troubleshooting. Diagnostic Capabilities: Provides diagnostic procedures for identifying common and uncommon faults across all major vehicle systems, aided by detailed descriptions and troubleshooting flowcharts. Illustrations And Photos: Includes hundreds of detailed illustrations, drawings, and photos to guide the user through each service and repair procedure, with enlarged inset views for critical parts. 📊 Manual Specifications File Format File Format: PDF Software Requirements: Adobe PDF Reader or compatible software. Operating System Compatibility: All PC-based Windows operating systems and Mac. Print Quality Print Quality: Printable without restriction, all pages printable. Binding Type Binding Type: Digital Download (printable to user's preferred binding) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Parallel-twin, SOHC Engine Displacement: 653 cc Bore X Stroke: 75 mm x 74 mm Performance Horsepower Estimate: Approximately 50-53 hp @ 6,500 rpm (varies by year/tuning) Torque Estimate: Approximately 40-42 lb-ft @ 5,000 rpm (varies by year/tuning) Fuel System Carburetion: Dual Mikuni VM34SS carburetors Fuel Type: Unleaded gasoline Engine Lubrication System Oil Capacity: Approximately 2.6 liters (with filter change) Oil Type Specification: Yamaha recommends Yamalube 20W-40 or equivalent API SE, SF service classification oil (manual will provide exact specifications). Cooling System Cooling Method: Air-cooled Engine Top End Valve Adjustment Procedure: Detailed...