🏷️ Basic Information Identification Make: Harley-Davidson Model: FXB Shovelhead Year: 1980 Engine Type: V-twin, air-cooled Engine Family: Shovelhead Generation Code: FXB (Belt Drive, Kickstart & Electric Start) 👋 Introduction Market Position Positioning: Essential resource for owners and independent mechanics seeking to maintain, repair, or restore the 1980 Harley-Davidson FXB Shovelhead, offering factory-level technical guidance. Competitive Analysis Advantage: Provides 'actual genuine repair service factory manuals,' differentiating from third-party publications and ensuring accuracy and completeness. Key Features Benefits: Empowers owners to understand and perform maintenance/repairs, saving on labor costs, improving diagnostic capabilities, and enabling informed communication with mechanics. Content Style Style: Features detailed substeps, notes, cautions, warnings, numbered instructions, figure callouts, detailed illustrations, drawings, photos, and enlarged insets for clarity. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive factory service and repair for the 1980 Harley-Davidson FXB Shovelhead Secondary Coverage: All styles, maintenance, diagnostics, troubleshooting, repair, restoration Page Count Estimated: Hundreds (specific count not provided, but described as 'complete' and 'comprehensive') Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine maintenance, tune-up, repair, troubleshooting, diagnosis, engine management systems Powertrain: Clutch, primary drive, transmission, kickstarter Fuel System: Fuel system diagnosis, maintenance, and repair Exhaust System: Exhaust systems maintenance and repair Electrical System: Electrical system diagnosis, troubleshooting, wiring diagrams, component testing Suspension Steering: Front suspension, rear suspension, steering system maintenance and repair Brakes: Brake system maintenance and repair General Information: General information, periodic lubrication Procedures Included Maintenance: Periodic maintenance, lubrication schedules, tune-ups Troubleshooting: Fault symptom diagnosis, troubleshooting guides, advanced troubleshooting Repair: Step-by-step repair procedures for all major systems, component replacement, rebuilds Diagnostics: Engine fault diagnosis, electrical system diagnostics, part testing techniques Technical Depth Depth: Comprehensive (factory-trained technician level), covering from basic maintenance to complete rebuilds and restoration 📊 Manual Specifications File Format Format: PDF Print Quality Quality: High resolution, fully printable (individual pages, chapters, or entire manual) Binding Type Type: Digital Download (Printable PDF) Paper Type Type: N/A (Digital format) Requirements Software: Adobe PDF Reader ⚙️ Engine Specifications Primary Engine Engine Code: Shovelhead (Evolution of Panhead, predecessor to Evolution Big Twin) Displacement: Typically 74 cubic inches (1200cc) or 80 cubic inches (1340cc) for Shovelhead models of this era. Specific to FXB, often 80 cubic inches. Performance Horsepower Estimated: Approximately 60-70 HP (exact figures vary by specific engine configuration and tuning) Torque Estimated: Approximately 70-80 lb-ft (exact figures vary by specific engine configuration and tuning) Fuel System Carburetor Type: Typically a Keihin butterfly carburetor (e.g., CV) or S&S carburetor (aftermarket common). Ignition System Type: Contact breaker points ignition system with battery and coil, or early electronic ignition systems. Cooling System Method: Air-cooled Lubrication System: Dry sump oil system with oil tank separate from crankcase. 🔧 Transmission Standard Type: 4-speed constant mesh, manual transmission. Optional Availability: N/A (4-speed was standard for this era). Features Drive Type: Belt drive to the rear wheel (FXB designation). Fluid Type Recommendation: Manual specifies Harley-Davidson proprietary transmission lubricant or equivalent SAE 50 or SAE 60 gear oil depending on operating temperature and specific Harley recommendations. 📐 Dimensions Exterior Wheelbase: Approx. 62.5 inches (1588 mm) - common for FX models. Weights Dry Weight: Approx. 590-610 lbs (268-277 kg) - typical for FX models of this era. 🛡️ Safety Features Ratings Crash Test Results: N/A for this era of motorcycle; safety features are mechanical and design-based. Active Features Braking System: Hydraulic disc brakes front and rear. Passive Features Lighting: Headlight, taillight, brake light, turn signals. 💡 Technology Features Infotainment Features: N/A (This era of motorcycle predates modern infotainment systems; focus is on core mechanical and electrical function). Driver Assistance Features: N/A (No electronic driver assistance features on this model). Connectivity Features: N/A (No modern connectivity features). 🔧 Maintenance Service Intervals Oil Change: Typically every 2,000-3,000 miles (3,200-4,800 km), or as specified by the manual. Primary Chain Adjustment: As needed, usually checked every few thousand miles or if any looseness is detected. Tune Up: Recommended annually or every 5,000 miles (8,000 km), covering spark plugs, ignition timing, carburetor adjustment, and general inspection. Fluid Specifications Engine Oil: Refer to manual for specific viscosity (e.g., SAE 20W-50 or SAE 50) and Harley-Davidson approved oil types. Often a mineral-based motorcycle-specific oil is recommended. Primary Chain Case Oil: Refer to manual for specific type and capacity (often SAE 20W-50 motorcycle oil or primary chain lubricant). Known Issues Common Problems: Oil leaks (especially from pushrod tubes and crank seals), transmission shifting issues, carburetor tuning challenges, potential for stator/regulator failure (early electronic systems). Filter Part Numbers Oil Filter: Manual will specify OEM part number for the era, often a spin-on type filter or a screen filter in the oil tank depending on configuration. 📚 Vehicle History Brand Heritage Legacy: Harley-Davidson, an iconic American motorcycle manufacturer with a history dating back to 1903, known for its powerful V-twin...