This workshop repair and service manual covers the 860 and 860GTS models produced from 1976 through 1979. Renowned for its performance-oriented motorcycles and distinctive V-twin engines, the brand has a rich sporting heritage. The 860 series represents an evolution of the brand's V-twin platform, often featuring engineering by Fabio Taglioni, and is recognized for its unique character and collector appeal. This manual encompasses all models, engines, trims, and transmission types, providing comprehensive information to owners and technicians. This manual offers detailed, professional-level diagnostics and repair procedures for all major systems, including the engine, drivetrain, chassis, and electrical components. It covers scheduled maintenance, fluid changes, troubleshooting common issues, and in-depth repair processes from disassembly to reassembly. With step-by-step instructions, critical specifications, detailed diagrams, and illustrations, this manual is an essential resource for maintaining and repairing your 860/860GTS, ensuring optimal performance and longevity. 🏷️ Basic Information Identification Make: Ducati Model: 860 / 860GTS Model Years Covered: 1976, 1977, 1978, 1979 👋 Introduction Market Position Target Audience: Ducati 860/860GTS owners and independent repair technicians Competitive Analysis Value Proposition: Provides comprehensive, professional-grade repair and maintenance information at a fraction of dealership costs Key Features Ease Of Use: Numbered instructions, bold figure numbers for easy illustration matching, table of contents for quick navigation Diagnostic Support: Integrated troubleshooting and electrical service procedures with detailed wiring diagrams Detail Enhancements: Enlarged inset diagrams for detailed part examination 📋 Manual Details Coverage Areas Coverage Scope: All models, engines, trims, and transmission types Page Count Estimated Page Count: Hundreds of pages (typical for comprehensive workshop manuals) Manual Type Manual Type: Workshop Repair and Service Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: General Information, Fuel System, Cooling System, Top End, Lubrication System, Crankshaft/Transmission, Engine Removal/Installation Drivetrain: Clutch, Crankshaft/Transmission, Final Drive Chassis: Wheels/Tires, Brakes, Suspension, Steering, Frame Electrical: Electrical System, Wiring Diagrams Miscellaneous: Appendix Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Diagnostics: Troubleshooting common issues, diagnostic procedures Repair: Disassembly, cleaning, reassembly, component replacement, major overhauls Adjustments: Carburetor tuning, ignition timing, valve clearance adjustments, brake adjustments Technical Depth Depth Of Information: Comprehensive, detailed, professional-level diagnostics and repair procedures Detail Level: Step-by-step repair procedures, critical specifications, detailed diagrams, illustrations, and photos 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Printability: Full Printable Zoom Capability: Zoom In/Out functionality for detailed viewing Binding Type Binding: Digital Download (No physical binding) Paper Type Paper Type: N/A (Digital format) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinZip Compatibility Operating Systems: Compatible with All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 90-degree V-twin (Desmodromic valve actuation typical for Ducati of this era) Engine Displacement: Approximately 860cc (specific variants may exist) Performance Horsepower: Typically in the range of 60-70 HP (specific figures depend on variant and tuning) Torque: Specific torque figures will be detailed in the manual Fuel System Carburetion: Likely dual Dell'Orto carburetors (specific models and sizes to be confirmed in manual) Fuel Type: Unleaded gasoline (manual will specify octane requirements) 🔧 Transmission Standard Transmission Type: 5-speed constant mesh gearbox Optional Optional Transmission: N/A (Typically single transmission option for a model variant) Features Clutch Type: Dry multi-plate clutch (standard for Ducati V-twins of this era) 📐 Dimensions Exterior Wheelbase: Specific wheelbase measurements will be detailed in the manual Weights Dry Weight: Approximately 200-220 kg (unladen, specific figures vary by model variant) 🛡️ Safety Features Ratings Safety Standards: N/A (Motorcycles of this era did not have formal crash test ratings like cars) Active Features Braking System: Dual front disc brakes, single rear disc brake (likely by Brembo or similar high-quality manufacturer) Passive Features Lighting: Headlight, taillight, turn signals, brake light 💡 Technology Features Infotainment Infotainment System: N/A (Analog instrumentation typical for the era) Driver Assistance Driver Assistance Features: N/A (No electronic rider aids present) Connectivity Connectivity Features: N/A (No electronic connectivity features) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 km or annually (specifics in manual) Valve Clearance Interval: Recommended at major service intervals (e.g., every 6,000-10,000 km) Fluid Specifications Engine Oil Type: SAE 20W-50 or similar viscosity motorcycle-specific oil (manual will specify precise grade and API rating) Engine Oil Capacity: Approximately 2.5-3.0 liters (specific capacity in manual) Brake Fluid Type: DOT 3 or DOT 4 (manual will specify) Gearbox Oil Type: Specific gear oil or SAE 80W-90 gear lubricant (manual will specify) Known Issues Common Wear Items: Camshaft wear (especially earlier models), electrical component reliability, carburetor synchronization issues Desmodromic System: Requires precise adjustment; manual provides detailed procedures 📚 Vehicle History Brand Heritage Manufacturer Reputation: Ducati is renowned for its performance-oriented motorcycles, distinctive V-twin engines, and sporting heritage. Model Evolution Predecessor Models: The 860 series followed earlier V-twin designs like the Ducati 750 series. Design Philosophy: The 860 series represented an evolution of...