Positioning:
Essential diagnostic and repair resource for owners and independent mechanics of the 1983 Harley-Davidson FXB Shovelhead.
Value Proposition:
Provides the same level of detail and accuracy as official Harley-Davidson factory documentation, enabling self-sufficiency in maintenance and repairs.
Documentation Source:
Official Factory Service Manual.
Completeness:
Covers all aspects of the vehicle's mechanical and electrical systems.
Engine:
Detailed disassembly, assembly, troubleshooting, and tuning of the Shovelhead engine.
Transmission:
Service procedures for the transmission, including clutch and internal components.
Electrical System:
Wiring diagrams, component testing, ignition system, lighting, charging system.
Fuel System:
Carburetor (likely Keihin Butterfly or similar), fuel lines, and fuel pump service.
Brakes:
Front and rear brake system maintenance, adjustment, and repair.
Suspension:
Front fork and rear shock absorber service, adjustments, and related components.
Frame And Body:
Frame inspection, bodywork removal/installation, and related hardware.
Wheels And Tires:
Wheel bearing service, tire mounting, and related components.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, lubrication points.
Troubleshooting:
Systematic diagnosis of common and uncommon problems with detailed diagnostic trees.
Rebuilds:
Comprehensive instructions for rebuilding major engine and transmission components.
Adjustments:
Carburetor tuning, ignition timing, clutch and brake adjustments.
Technical Specifications:
Torque values, clearances, fluid types, and electrical specifications.
Depth:
Full mechanical and electrical overhaul, advanced diagnostics.
Engine Family:
Shovelhead
Engine Configuration:
Air-cooled, OHV, 45-degree V-twin
Displacement:
1340cc (82 cubic inches)
Bore X Stroke:
3.4375 in x 4.25 in (87.3 mm x 108 mm)
Compression Ratio:
Approximately 8.0:1 (varies by specific engine build)
Horsepower Estimate:
Approximately 65-70 HP at 5000 RPM (factory estimates)
Torque Estimate:
Approximately 80-85 ft-lbs at 3200 RPM (factory estimates)
Carburetor Type:
Typically a Keihin Butterfly (e.g., CV Carburetor) or Linkert, depending on exact build configuration.
Fuel Type:
Unleaded gasoline, octane rating 87 or higher.
Ignition Type:
Contact breaker points (pre-1978) or Electronic Ignition (solid state, common by 1983).
Crash Test Results:
N/A (Motorcycle safety ratings are not standardized like automotive; focus is on mechanical integrity and rider skill).
Braking System:
Hydraulic disc brakes, front and rear. Specifics on caliper type and rotor size are in the manual.
Lighting:
Headlight, taillight, brake lights, turn signals, and indicator lamps.
Oil Change:
Typically every 2,000-3,000 miles or 6 months, depending on riding conditions (refer to manual for exact spec).
Primary Chain Tension:
Requires periodic adjustment, detailed in the manual.
Spark Plug Replacement:
Every 5,000-7,500 miles (check manual for specific plug type and gap).
Engine Oil:
Harley-Davidson 20W50 or equivalent motorcycle oil. Capacity approx. 3 quarts (2.8L).
Transmission Oil:
Harley-Davidson primary chaincase lubricant or equivalent SAE 50 motorcycle oil. Capacity approx. 1 quart (0.95L).
Brake Fluid:
DOT 4 brake fluid (check manual for specific type and bleeding procedure).
Oil Leaks:
Common with Shovelheads due to age and seal material; manual details seal replacement procedures.
Carburetor Tuning:
May require periodic adjustment for optimal performance and fuel economy.
Electrical Gremlins:
Age-related wiring issues can occur; the manual's wiring diagrams are invaluable.
Kickstarter Engagement:
Can sometimes be stiff; manual addresses lubrication and adjustment.
Manufacturer:
Harley-Davidson Motor Company, established 1903.
Shovelhead Era:
The Shovelhead engine replaced the Panhead in 1966 and was produced until the introduction of the Evolution engine in 1984. The FXB model represented a significant evolution in Harley-Davidson's lineup.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA
Model Significance:
The 1983 FXB was part of the final years of Shovelhead production, often featuring electronic ignition and improved braking systems over earlier models. It was a staple of the cruiser and touring segments.
