🏷️ Basic Information Identification Make: Harley-Davidson Model: FX Shovelhead Year: 1979 Codes Engine Code Designation: Shovelhead Generation Production Generation: Fourth Generation (Shovelhead) 👋 Introduction Market Position Target Audience: DIY Enthusiasts and Experienced Mechanics Competitive Analysis Value Proposition: Inexpensive way to keep your vehicle working properly, avoids expensive dealership service Key Features Completeness: Complete Official Full Factory Service Repair Manual Accessibility: Downloadable PDF for immediate access, no shipping delays or costs 📋 Manual Details Coverage Areas Primary Coverage: Complete Factory Service and Repair Styles Covered: All FX Styles Page Count Estimated Page Count: Hundreds Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine: Full Engine Overhaul, Tuning, Troubleshooting Transmission: Service, Repair, Troubleshooting Clutch: Service, Repair, Troubleshooting Primary Drive: Service, Repair, Troubleshooting Fuel System: Carburetor, Fuel Tank, Lines, Troubleshooting Exhaust Systems: Inspection, Maintenance Electrical System: Wiring Diagrams, Troubleshooting, Component Service Front Suspension: Service, Repair, Troubleshooting Steering: Service, Repair, Troubleshooting Rear Suspension: Service, Repair, Troubleshooting Brakes: Service, Repair, Troubleshooting Kickstarter: Service, Repair, Troubleshooting Procedures Included General Information: Included Troubleshooting: Comprehensive Troubleshooting Guides Lubrication: Periodic Lubrication Schedules and Procedures Maintenance: Scheduled Maintenance Procedures Tune Up: Detailed Tune-Up Procedures Disassembly Reassembly: Step-by-step instructions based on complete disassembly Electrical Diagnostics: Combined troubleshooting and electrical service procedures with wiring diagrams Technical Depth Depth: Factory Level Detail for DIY and Experienced Mechanics Illustrations: Hundreds of photos and illustrations, enlarged insets for detailed part examination Instructions: Numbered instructions, detailed substeps, notes, cautions, and warnings Navigation: Numbered table of contents for fast information retrieval, index included 📊 Manual Specifications File Format Format: PDF Compatibility: All PC-based Windows operating systems and Mac Required Software: Adobe PDF Reader Print Quality Printability: Printable without restriction, entire manual or specific pages Binding Type Binding: Digital Download (No physical binding) Paper Type Paper Quality: N/A (Digital Format) Delivery Delivery Method: Instant Download Link on Checkout Page ⚙️ Engine Specifications Primary Engine Engine Type: Harley-Davidson Shovelhead V-Twin Engine Displacement: Known for 74 cu in (1200cc) and 80 cu in (1340cc) variants during this era. Specific displacement for 1979 FX models should be confirmed via manual. Performance Power Output: Refer to manual for specific horsepower and torque figures as they varied by configuration. Fuel System Carburetor Type: Typically Tillotson or Keihin butterfly carburetors. Manual will detail specific models and settings. Fuel Requirements: Manual will specify octane rating and potential additives. Lead substitute may be recommended for older engines. 🔧 Transmission Standard Transmission Type: 4-speed constant mesh Optional Optional Transmissions: N/A for 1979 FX models Features Transmission Fluid: Manual will specify SAE viscosity grade and capacity. Common fluids included Harley-Davidson Formula+ or equivalent. 📐 Dimensions Exterior Wheelbase: Varies by specific FX model (e.g., FXEF, FXWG). Manual will provide exact measurements. Weights Dry Weight: Varies by specific FX model. Manual will provide exact figures. 🛡️ Safety Features Ratings Safety Standards: Focus on mechanical integrity and proper operation of safety-critical systems (brakes, lights). Active Features Active Safety: Brake system maintenance and adjustment for optimal performance. Passive Features Passive Safety: Focus on proper assembly and component integrity. 💡 Technology Features Infotainment Infotainment Features: Not applicable for this model year. Primarily mechanical and electrical systems. Driver Assistance Driver Assistance: Not applicable for this model year. Connectivity Connectivity Features: Not applicable for this model year. 🔧 Maintenance Service Intervals Oil Change Interval: Manual will specify interval based on mileage or operating hours, typically every 2,000-3,000 miles for this era. Also specifies primary chaincase oil change. Spark Plug Replacement: Manual will provide recommended interval for inspection and replacement. Chain Adjustment: Primary drive chain and final drive chain (if applicable) adjustment procedures and intervals. Fluid Specifications Engine Oil: Manual will specify viscosity grade (e.g., 20W-50) and type (e.g., straight mineral oil, or specific synthetic blends recommended for older V-twins). Referencing Harley-Davidson's proprietary fluid specifications is crucial. Transmission Fluid: Manual will specify viscosity and type, likely similar to engine oil specifications for the era. Primary Chaincase Oil: Manual will specify viscosity and type for the shared primary drive and clutch lubrication system. Known Issues Common Wear Items: Valve guides, oil leaks from pushrod tubes and base gaskets, carburetor tuning, primary chain wear, kickstart mechanism. Electrical Aging: Degradation of wiring insulation, aging of ignition components, voltage regulator issues common in this era. 📚 Vehicle History Brand Heritage Brand History: Harley-Davidson, a long-standing American motorcycle manufacturer with a rich history of V-twin engines and custom culture. Model Evolution Shovelhead Evolution: The Shovelhead engine, introduced in 1966, evolved through various iterations. The FX models were generally custom-oriented variations of the FL (Electra Glide) platform, often featuring different frame geometry and suspension. Production Production Years: Shovelhead engines were produced from 1966 to 1984. The FX designation has been used for various custom configurations throughout Harley-Davidson's history. 🏆 Awards & Recognition Recognitions Model Recognition: The Shovelhead era is highly regarded...