🏷️ Basic Information Identification Make: Harley-Davidson Model: FL Year: 1979 Engine Displacement: 1340cc Codes Engine Code Family: Shovelhead 👋 Introduction Market Position Historical Significance: The 1979 FL represents a pivotal point in Harley-Davidson's evolution, featuring the potent 1340cc (80 cubic inch) Shovelhead engine that became a staple of the big twin lineup. Target User Base: Owners and independent repair shops specializing in vintage Harley-Davidson motorcycles. Key Features Practical Utility: This manual provides the essential information needed to maintain and repair the iconic 1979 Harley-Davidson FL, ensuring its longevity and performance. Authenticity: As a factory service manual, it reflects the original manufacturer's intended procedures and specifications, crucial for authentic restoration and repair. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Intended Audience: Mechanics and DIY enthusiasts Page Count Estimated Page Count: Approximately 300-500 pages (typical for this era of service manual) Format Format: Printed Book 📖 Manual Coverage Systems Covered Engine Mechanical: Complete disassembly, assembly, inspection, and repair of the 1340cc Shovelhead engine, including cylinders, pistons, crankshaft, connecting rods, camshafts, valve train, and oil pump. Fuel System: Carburetor (likely a Keihin Butterfly or similar for the era) adjustment, cleaning, and overhaul; fuel tank, fuel lines, and fuel filter maintenance. Ignition System: Points and condenser ignition system troubleshooting, adjustment, and component replacement; ignition coil and spark plug specifications. Transmission: 4-speed constant mesh transmission; removal, disassembly, assembly, inspection, and adjustment of gears, shafts, bearings, and shift mechanisms. Drivetrain: Primary drive (chain or belt, depending on specific FL sub-model), clutch operation and adjustment, final drive (belt or chain) inspection and maintenance. Braking System: Front and rear brake system service, including hydraulic fluid replacement, caliper maintenance, brake pad/shoe inspection and replacement, and drum brake adjustment. Suspension System: Front fork (likely FL style leading-link or telescopic) overhaul and fluid changes; rear shock absorber maintenance and replacement; swingarm bearing service. Electrical System: Wiring diagrams, troubleshooting of lighting, charging system (generator or alternator), starter motor, battery, and all switches and controls. Frame And Bodywork: Frame inspection, maintenance of body panels, fenders, fuel tank, seat, and handlebars. Procedures Included Maintenance: Routine maintenance procedures such as oil changes, filter replacements, chain lubrication, brake adjustments, and tune-ups. Troubleshooting: Diagnostic procedures for common problems, with symptom-based troubleshooting guides. Repair: Detailed step-by-step repair instructions for virtually all components of the motorcycle. Disassembly Assembly: Comprehensive guides for taking apart and putting back together all major mechanical and electrical systems. Specifications: Torque specifications for all fasteners, clearances, tolerances, fluid capacities, and other critical measurements. Technical Depth Depth Of Coverage: Comprehensive, covering everything from basic maintenance to complete engine rebuilds and electrical system diagnostics. Diagnostic Capabilities: Detailed troubleshooting charts and procedures to identify and resolve issues. Component Rebuilds: In-depth instructions for overhauling key components like the engine, transmission, and carburetor. 📊 Manual Specifications File Format Digital Format Availability: Typically available as a scanned PDF, but the original product is a printed book. Print Quality Paper Quality: Original factory manuals are typically printed on durable, semi-gloss paper suitable for workshop environments. Binding Type Binding: Likely a saddle-stitched or perfect-bound paperback. Illustrations Diagrams And Photos: Contains detailed line drawings, exploded views, and possibly some black and white photographs to illustrate procedures and components. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 45-degree V-twin, OHV (Overhead Valve) Displacement: 1339.8 cc (81.7 cubic inches) Bore X Stroke: Approx. 3.44 in x 4.25 in (87.3 mm x 108 mm) - specific factory specs would be in the manual. Performance Horsepower: Estimated 60-70 HP (at crank, depending on tuning and specific model variant). Torque: Estimated 75-85 ft-lbs (at crank). Fuel System Carburetor: Likely Keihin Butterfly or S&S Super E/B (check manual for exact OEM fitment). Lubrication Oil System: Dry Sump lubrication with oil tank typically mounted in the frame backbone. 🔧 Transmission Standard Transmission Type: 4-speed constant mesh, foot shift, hand clutch Features Clutch Type: Wet multi-plate Primary Drive: Chain drive (enclosed primary cover) Final Drive: Belt drive (standard for FL models) 📐 Dimensions Exterior Wheelbase: Approximately 61.5 inches (1562 mm) - may vary slightly by specific FL sub-model. Weights Dry Weight: Approximately 600-650 lbs (272-295 kg) - dependent on options and accessories. 🛡️ Safety Features Ratings Safety Features Era: Focus on mechanical reliability and rider control rather than modern electronic safety systems. Disc brakes were standard by this era. Active Features Braking System: Front disc brake, rear drum brake (or dual discs on some later FLH variants, confirm for '79 FL). 💡 Technology Features Infotainment Audio Systems: None standard from the factory. Any audio would be aftermarket additions. Driver Assistance Safety Systems: No modern electronic driver assistance features. Focus is on core mechanical functionality. Connectivity Connectivity Options: None. This is a purely mechanical motorcycle from a pre-digital era. 🔧 Maintenance Service Intervals Engine Oil Change: Typically every 1,000-2,000 miles or annually, depending on usage and oil...