This manual covers the motorcycle, produced between 1984 and 1992, including the Seca II (chassis code 4HK1) and Diversion (chassis code 58P) variants. Known for its reliable 4-stroke, DOHC, air-cooled inline-four engine with a displacement of 598 cc, the XJ600 offered a balanced blend of performance and comfort, making it a popular choice for sport-touring and everyday use. The model features a 6-speed transmission, wet multi-disc clutch, and final chain drive, with dual disc front brakes and a single disc rear brake for effective stopping power. Its heritage lies within the versatile XJ series, recognized for dependable engineering and user-friendly operation. This comprehensive service and repair manual provides detailed guidance for all aspects of the XJ600. It covers routine maintenance, engine overhaul, transmission systems, chassis components, and electrical systems, complete with troubleshooting diagnostics and repair procedures. The manual includes technical specifications, torque values, fluid requirements, and detailed diagrams and illustrations to assist both professional technicians and experienced DIY enthusiasts. Its scope ensures that owners can effectively maintain and repair their motorcycles, preserving performance and reliability across the various model years. 🏷️ Basic Information Identification Make: Yamaha Model: XJ600 Model Variants: XJ600 Seca II (North America), XJ600 Diversion (Europe) Production Years Covered By Manual: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992 Chassis Codes: 4HK1 (Seca II), 58P (Diversion) 👋 Introduction Market Position Target Audience: Professional motorcycle technicians and experienced DIY enthusiasts Key Features Documentation Style: Detailed sub-steps, notes, cautions, and warnings for critical information. Numbered instructions for step-by-step guidance. Bold figure numbers for easy illustration matching. Visual Aids: Detailed illustrations, drawings, and photos; enlarged insets for detailed part examination. Navigation: Numbered table of contents for quick information retrieval. Combined troubleshooting and electrical service with detailed wiring diagrams. 📋 Manual Details Coverage Areas Manual Coverage Scope: Full Service Repair Diagrams And Illustrations: Includes detailed diagrams, drawings, and photos for all procedures, along with wiring diagrams. Page Count Estimated Page Count: Likely 300-500+ pages (typical for comprehensive factory-level service manuals) Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul, top-end rebuild, bottom-end rebuild, cylinder head, valve train, piston and connecting rod, crankshaft, oil pump, lubrication system, cooling system, fuel system (carburetors), ignition system. Transmission Systems: Gearbox inspection and repair, clutch operation and service, gearshift mechanism. Chassis Systems: Frame inspection, front fork assembly, rear suspension (shock absorber, swingarm), steering system, wheels and tires, braking system (front and rear), exhaust system. Electrical Systems: Wiring diagrams, lighting system, ignition coil, starter motor, charging system (alternator, regulator/rectifier), battery, instrument cluster, switches, sensors. Bodywork And Fittings: Fairings, seat, fuel tank, fenders, handlebars, controls, levers, cables. Procedures Included Routine Maintenance: Oil and filter changes, spark plug replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake fluid flush, coolant flush, valve clearance checks. Troubleshooting Diagnostics: Diagnostic flowcharts, common problem identification and solutions, electrical system troubleshooting with wiring diagrams. Repair Rebuild: Complete engine disassembly and reassembly, carburetor synchronization and tuning, suspension overhaul, brake caliper rebuilding, electrical component testing and replacement. Technical Data Specs: Torque specifications for all fasteners, fluid types and capacities, electrical component resistance values, timing specifications, general dimensions. Technical Depth Technical Depth Level: Comprehensive (from basic maintenance to complete engine and electrical system rebuilds) 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality Description: Full Printable (enabling users to print specific pages or the entire manual) Binding Type Binding Type: Digital (PDF download) Paper Type Paper Type: Not Applicable (Digital File) Delivery Method Delivery Method: Instant Download Software Requirements Software Requirements: Adobe PDF Reader, WinRAR (for potential archive extraction) Compatibility Operating System Compatibility: All versions of Windows and macOS ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, DOHC, air-cooled, inline-four cylinder Displacement: 598 cc Bore X Stroke: 62.0 mm x 49.6 mm Compression Ratio: 9.5:1 Horsepower Output: Approx. 58-61 HP @ 8500 RPM (depending on market and tuning) Torque Output: Approx. 49-51 Nm @ 7500 RPM Fuel System Fuel Delivery: Four Mikuni constant-velocity (CV) carburetors (e.g., Mikuni BS32) - exact model may vary by year/market Fuel Type: Unleaded gasoline Ignition System Ignition Type: Transistor Controlled Ignition (TCI) or similar electronic ignition system Lubrication System Oil Type Recommendation: Yamaha recommends Yamalube 4 (or equivalent API SG, JASO MA) 10W-40 or 20W-40 motorcycle oil. Manual will specify precise viscosity based on ambient temperature. Oil Capacity Oil Capacity With Filter Change: Approximately 3.4 liters (3.6 US qt) 🔧 Transmission Standard Transmission Type: 6-speed, constant mesh Features Clutch Type: Wet, multiple disc Final Drive: O-ring sealed chain Fluid Type Transmission Oil Type: API GL-4 SAE 80W or 90 hypoid gear oil (manual will specify precise recommendation) 📐 Dimensions Exterior Overall Length: Approx. 2140 mm (84.3 in) for Seca II Overall Width: Approx. 740 mm (29.1 in) for Seca II Overall Height: Approx. 1160...