🏷️ Basic Information Identification Make: Harley-Davidson Model: Electra-Glide Model Codes: FL, FLH Year: 1966-1969 Generation Engine Generation: Shovelhead Codes Engine Designation: 74 OHV 👋 Introduction Market Position Positioning: Essential resource for owners and mechanics of 1966-1969 Harley-Davidson FL/FLH Electra-Glide models. Targets classic motorcycle enthusiasts, restorers, and DIY mechanics. Competitive Analysis Competitors: Aftermarket repair manuals can be generic or incomplete. This factory manual provides the definitive, factory-authorized procedures and specifications. Key Features Features: Complete A-Z coverage, factory-specific information, detailed diagrams and illustrations, troubleshooting guides, technical specifications, printable format. 📋 Manual Details Coverage Areas Coverage: All FL and FLH Electra-Glide models, 1966-1969 Page Count Page Count: Estimated 500+ pages (based on typical Harley-Davidson service manuals of this era) Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Systems: Engine (Shovelhead OHV), Transmission (4-speed), Clutch, Primary Drive, Final Drive, Frame, Suspension (Front & Rear), Brakes (Drum), Fuel System (Carburetion), Ignition System, Electrical System (Lighting, Charging, Starting), Bodywork, Handlebars, Controls, Wheels, Tires, Instruments, Chassis Components Procedures Included Procedures: Routine Maintenance, Troubleshooting, Disassembly, Reassembly, Repair, Overhaul, Tuning, Adjustments, Electrical Diagnostics, Wiring Diagrams, Component Replacement, Specifications, Torque Values, Lubrication Charts Technical Depth Depth: Comprehensive, factory-level detail for technicians and experienced enthusiasts. Covers all repairs from basic adjustments to complete engine and transmission rebuilds. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, fully printable pages. Images and diagrams can be enlarged. Binding Type Binding Type: Digital (PDF). Printable pages allow for custom binding. Paper Type Paper Type: Digital. Printable on standard paper. ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, OHV (Overhead Valve) V-twin Engine Displacement: 74 cubic inches (1213 cc) Engine Family: Shovelhead Performance Horsepower Estimate: Approx. 60-65 HP (at crankshaft, variations by year and tuning) Fuel System Carburetion: Typically Linkert M74B or S&S Super E/G (depending on modifications and year) Ignition System Ignition Type: Battery and Coil (points ignition) 🔧 Transmission Standard Transmission Type: 4-speed constant mesh, foot shift Optional Optional Transmissions: N/A for factory models within this year range Features Clutch Type: Dry, multi-plate 📐 Dimensions Exterior Wheelbase: Approx. 63.5 inches Weights Dry Weight: Approx. 600-650 lbs (depending on model configuration) 🛡️ Safety Features Ratings Safety Standards: Industry standards of the era for motorcycle safety. Focus on mechanical integrity and operational safety. Active Features Active Safety: Effective braking system (front and rear drum brakes), stable chassis geometry. Passive Features Passive Safety: Sturdy frame construction, rider controls designed for stability. 💡 Technology Features Infotainment Infotainment Systems: Basic rider instrumentation: speedometer, tachometer (optional), ammeter, oil pressure light, neutral indicator. No modern infotainment systems. Driver Assistance Driver Assistance: None. Relies on rider skill and mechanical condition. Connectivity Connectivity: None. Mechanical and electrical systems only. 🔧 Maintenance Service Intervals Typical Intervals: Oil changes: every 1,000-2,000 miles. Spark plug replacement: every 3,000-5,000 miles. Valve adjustments: as needed, typically with oil changes or every few thousand miles. Chain adjustments: as needed. Fluid Specifications Engine Oil: Typically SAE 50 or SAE 20W-50 motorcycle-specific oil (refer to manual for precise specifications and viscosity based on temperature). Transmission Oil: Specialized transmission lubricant for Harley-Davidson motorcycles (e.g., Harley-Davidson Formula + or equivalent). Primary Chain Case Oil: Typically Harley-Davidson primary lubricant or SAE 50 motor oil. Known Issues Common Wear Points: Valve guides, oil leaks (especially from crankcase seals and rocker boxes), primary chain adjustment, carburetor wear, electrical connections (due to age). 📚 Vehicle History Brand Heritage Brand Legacy: Harley-Davidson, a storied American motorcycle manufacturer with a legacy dating back to 1903. Model Evolution Electra Glide Evolution: The Electra-Glide, introduced in 1965, became the flagship touring model. The FLH was the higher-performance variant. The Shovelhead engine replaced the Panhead in 1966, marking a significant mechanical update. Production Production Period: 1966-1969 for the Shovelhead variant of the Electra-Glide. 🏆 Awards & Recognition Recognitions Collectible Status: Highly sought after by collectors and enthusiasts, recognized as a classic American motorcycle.