Historical Context:
The FXSB was part of Harley-Davidson's Super Glide line, known for its blend of cruiser styling with performance capabilities, appealing to riders seeking a distinctive American motorcycle experience.
Era Competition:
Competed in a market segment with offerings from Japanese manufacturers and other American custom builders, but maintained its strong brand identity and V-twin heritage.
Model Distinction:
The 1980 FXSB Shovelhead represented the evolution of the Shovelhead engine platform, offering a classic Harley-Davidson riding experience before the introduction of the Evolution engine. Known for its robust torque and distinctive exhaust note.
Engine:
Complete overhaul, top-end rebuild, bottom-end rebuild, lubrication, cooling (air-cooled), timing, ignition system, carburetion (e.g., Keihin butterfly or Linkert models if applicable to specific early 80s FXSB variants), fuel delivery.
Transmission:
4-speed constant mesh transmission service, clutch operation and adjustment, primary drive maintenance, gear inspection and replacement.
Electrical:
Wiring diagrams, lighting system, battery, charging system (generator or alternator), starter motor, ignition system (points or electronic), instrument cluster troubleshooting.
Chassis:
Frame inspection and repair, suspension (forks, rear shocks), steering system, wheels and tires, bearings, brakes (front and rear drum or disc depending on specific FXSB variant).
Bodywork:
Fenders, fuel tank, seat, exhaust system, basic trim and accessory installation.
Maintenance:
Regular scheduled maintenance, oil changes, filter replacements, spark plug service, chain adjustment, lubrication points.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides.
Repair:
Step-by-step repair instructions for all major and minor components, assembly and disassembly procedures.
Diagnostics:
In-depth diagnostic charts and fault finding sequences.
Depth:
Comprehensive, covering from basic rider maintenance to full engine and transmission overhauls. Suitable for experienced mechanics and dedicated enthusiasts. Includes detailed torque specifications and clearances.
File Type:
PDF (Portable Document Format)
Searchability:
Optimized for text search within the document, allowing quick access to specific topics.
Print Readability:
High-resolution scans or digital creation ensuring clear text and legible diagrams for printing.
Binding:
N/A (Digital PDF format)
Paper Quality:
N/A (Digital PDF format, quality depends on user's printer)
Engine Family:
Shovelhead
Engine Configuration:
45-degree V-twin, air-cooled
Displacement:
74 cubic inches (1200cc) or 80 cubic inches (1340cc) for later Shovelheads, the 1980 FXSB likely utilized the 80 cubic inch (1337cc) variant.
Horsepower Estimated:
Approx. 55-65 HP (estimated, figures varied by tuning and specific model year).
Torque Estimated:
Approx. 70-80 ft-lbs (estimated).
Carburetor Type:
Typically a Keihin butterfly carburetor, but earlier models or specific variants might have used others. The manual would detail specific carburetor models and settings.
Fuel Type:
Unleaded gasoline, typically with a high octane rating (e.g., 91-93 RON).
Type:
4-speed constant mesh manual transmission
Options:
N/A for this specific model year and configuration.
Clutch Type:
Wet multi-plate clutch, operated via handlebar lever.
Primary Drive:
Primary drive typically via a duplex chain to a dry clutch basket, connecting to the transmission.
Crash Test Results:
N/A (Motorcycles of this era were not subjected to standardized crash testing as cars are.
Brakes:
Front and rear braking systems. Early 80s could feature disc brakes, especially on the front, or drum brakes depending on the specific FXSB variant and market. Manual would detail their operation and maintenance.
Lighting:
Headlight, taillight, brake light, turn signals (indicators), and running lights for visibility.
Features:
Minimal. Typically a speedometer, tachometer (optional or standard depending on trim), and indicator lights. No modern infotainment or digital displays.
Features:
None. This model predates modern rider-assistance technologies.
Features:
None. Basic electrical connections for lights, ignition, and starter.
Oil Change:
Typically every 2,000-3,000 miles or annually, whichever comes first. Manual will specify exact interval and procedure.
Spark Plugs:
Check and clean/gap every 2,500 miles; replace as needed. Manual will provide correct gap and plug type (e.g., Champion H-10 or equivalent).
Chain Lubrication:
Lubricate chain every 500-1000 miles, adjust tension as needed (typically 1/2 inch free play).
Engine Oil:
Viscosity typically SAE 20W-50 or SAE 50 for air-cooled V-twins of this era. Specific Harley-Davidson oil or equivalent meeting their specifications is recommended. Manual will specify exact type and capacity (approx. 4 quarts).
Transmission Oil:
Typically Harley-Davidson's own transmission fluid or a suitable gear oil (e.g., SAE 80W-90 GL-4). Manual will specify type and capacity (approx. 1 quart).
Primary Chain Case Oil:
Typically SAE 30 or SAE 20W-50 motorcycle oil. Manual will specify type and capacity (approx. 1 quart).
Engine Leaks:
Shovelhead engines are known for minor oil seepage from various seals and gaskets. The manual will detail common leak points and seal replacement procedures.
Carburetor Tuning:
Carburetors of this era can require periodic adjustment for optimal performance and idle. The manual will provide detailed tuning procedures.
Electrical Reliability:
Older electrical systems may require attention to wiring connections, charging system components (regulator/rectifier), and battery health. The manual's wiring diagrams are invaluable.
Legacy:
Harley-Davidson, founded in 1903, has a long-standing reputation for producing iconic American motorcycles, characterized by their V-twin engines and distinctive styling.
Shovelhead Era:
The Shovelhead engine was produced from 1966 to 1984. The FXSB model represents a significant point in its development, bridging the gap between classic styling and early attempts at more modern cruiser design within the Harley-Davidson lineup.
Manufacturing Location:
United States (Milwaukee, Wisconsin, and York, Pennsylvania plants).
