🏷️ Basic Information Identification Make: Harley-Davidson Model: FLH / FX Shovelhead Product Name: 1966-1984 Harley-Davidson FLH FX Shovelhead Motorcycle Repair Manual Generation Production Years Covered: 1966-1984 Codes Engine Family: Shovelhead 👋 Introduction Market Position Positioning: Essential technical guide for owners and technicians maintaining and repairing iconic Harley-Davidson Shovelhead motorcycles. Competitive Analysis Alternatives: Direct competitor to original Harley-Davidson factory service manuals and aftermarket manuals from publishers like Clymer or Haynes, but in a convenient digital format. Key Features Features: Instant download, lifetime replacement policy, print-on-demand capability, digital access for on-the-trail repairs. 📋 Manual Details Coverage Areas Models Covered: Harley-Davidson FLH, FLHS, FX, FXB, FXSB, FXS, FXE, FXEF, FXWG Years Covered: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984 Variants Covered: Covers both FLH (cruiser) and FX (often 'Super Glide' variants) models, noting differences in chassis, engine mounts, and some accessories. Page Count Estimated Page Count: N/A (Digital Download) Manual Type Type: Repair Manual / Service Manual / Workshop Manual / Owners Manual / Parts Catalog (Comprehensive) Language Language: English Format Format: Electronic Downloadable PDF 📖 Manual Coverage Systems Covered Engine: Shovelhead Engine (including Shovelhead evolution), Engine Removal and Installation, Engine Specifications, Lubrication and Cooling System, Intake & Exhaust Fuel System: Carburetor (e.g., Keihin Butterfly, CV, Linkert variants where applicable), Fuel Delivery Transmission Drivetrain: Transmission, Drive Chain & Sprockets, Clutch Operation Chassis Suspension: Steering System, Shocks (Front and Rear Suspension), Frame Electrical System: Ignition System (Points, Electronic), Charging System (Generator/Alternator), Lighting, Wiring Diagrams, Battery, Starter Bodywork Cosmetics: Body Work, Fenders, Fuel Tanks, Seats Brakes: Front and Rear Brake Systems (Disc and Drum specific to model year), Brake Fluid Specifications and Bleeding Procedures Wheels Tires: Wheel Bearings, Tire Pressure Recommendations, Wheel Removal and Installation Procedures Included Maintenance: Routine Maintenance, Scheduled Service, Fluid Changes, Filter Replacements Repair: Engine Overhaul, Transmission Rebuild, Carburetor Tuning, Electrical Component Diagnosis and Repair, Brake System Service, Suspension Overhaul Troubleshooting: Advanced Troubleshooting, Symptom-Based Diagnosis Engine Rebuild: Piston and Cylinder Installation, Valve Adjustment and Lapping, Crankshaft and Connecting Rod Service, Oil Pump and Oil Cooler Service (if applicable) Electrical Diagnostics: Ignition timing, charging system testing, starter motor troubleshooting, wiring harness repair and continuity checks, use of test equipment. Technical Depth Depth: Comprehensive: From basic owner checks to full engine rebuilds, including torque specifications, clearances, and diagnostic procedures. Specific Data: Includes critical torque specifications for engine and chassis fasteners, valve clearances, piston ring end gap, bearing tolerances, and electrical component resistance/voltage checks. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High-Resolution Scans, Searchable Text (if OCRed) Binding Type Type: N/A (Digital Download) Paper Type Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-Cooled OHV V-Twin (Shovelhead) Displacement Options: Primary: 74 cu in (1200cc), 80 cu in (1340cc) for later models. Specific variations exist across the covered years. Performance Horsepower Range: Varies by year and specific engine configuration, typically in the range of 55-70 HP (approximate). Torque Range: Varies by year and specific engine configuration, typically in the range of 65-80 ft-lbs (approximate). Fuel System Carburetor Types: Keihin Butterfly, Keihin Constant Velocity (CV) from circa 1978, possibly early Linkert variants on very early models or transitions. Fuel Type: Unleaded gasoline (appropriate octane rating for vintage V-twins, as specified in the manual). 🔧 Transmission Standard Type: 4-speed Constant Mesh (usually left-side shift, foot clutch, hand shift was phased out or converted). Optional Gearbox: Primarily 4-speed. Note on potential aftermarket 5-speed conversions might be present in some sections. Features Clutch: Dry clutch, cable-actuated. Drive: Primary drive via chain; final drive via chain. 📐 Dimensions Exterior Wheelbase: Varies by FLH (cruiser) vs. FX (often shorter/more aggressive stance), typically 58-62 inches. Weights Dry Weight: Typically in the range of 550-650 lbs, depending on model and equipment. 🛡️ Safety Features Ratings Crash Test Results: N/A (Motorcycle, safety is primarily rider-dependent and based on vehicle handling and braking systems). Active Features Braking System: Front: Disc brake (early models may have drum), Rear: Disc brake (typically from mid-70s onwards). Passive Features Lighting: Headlight, Taillight, Brake Light, Turn Signals. 💡 Technology Features Infotainment Features: Minimal by modern standards; primarily mechanical and electrical systems. Some models might have basic analogue instrumentation. Driver Assistance Features: N/A (Motorcycle) Connectivity Features: N/A (Motorcycle) 🔧 Maintenance Service Intervals Oil Change: Typically every 2,500 - 5,000 miles, or as per specific manual recommendations based on riding conditions. Tune Up: Points adjustment, spark plug replacement, carburetor adjustment as needed, often annually or every 5,000 miles. Fluid Specifications Engine Oil: Refer to specific manual for grade (e.g., Harley-Davidson recommended, SAE 20W50, or straight weight oils depending on ambient temperature and engine condition). Often includes primary lubricant and transmission lubricant. Primary Chain Case Oil: Specific Harley-Davidson primary chain case lubricant or equivalent. Transmission Oil: Specific Harley-Davidson transmission lubricant or equivalent gear oil. Brake Fluid:...