Positioning:
The 1984 FXWG represented a significant point in Harley-Davidson's evolution, bridging classic styling with some modernizations. This manual is essential for owners and technicians working on this iconic model, providing the definitive guide for its care and maintenance.
Competition:
In its era, the FXWG competed with other American V-twins and imported cruisers. Its unique styling and V-twin rumble set it apart. The availability of factory service information is critical for preserving its value and performance.
Features:
This service manual is the official factory document, providing authoritative information directly from Harley-Davidson. It is designed to empower users to perform a wide range of service and repair tasks.
Areas Covered:
Engine, Transmission, Primary Drive, Electrical System, Fuel System, Ignition System, Brakes, Suspension, Frame, Bodywork, Wheels, Tires, Diagnostics, Troubleshooting, Maintenance, Repair, Specifications.
Number Of Pages:
Hundreds (estimated 600+ based on typical factory manuals of this era)
Type:
Factory Service Manual / Workshop Manual
Engine System:
Detailed disassembly, assembly, inspection, and repair procedures for the Shovelhead V-twin engine, including cylinder heads, cylinders, pistons, connecting rods, crankshaft, camshaft, valve train, oil pump, and lubrication system.
Transmission System:
Comprehensive coverage of the 4-speed constant mesh transmission, including gear sets, shift mechanism, clutch operation, primary drive (clutch and chain), and lubrication.
Electrical System:
Wiring diagrams, component identification, testing procedures for ignition, lighting, charging system (alternator, regulator), starter motor, and all associated components.
Fuel System:
Carburetor (likely Keihin Butterfly) overhaul, adjustments, and troubleshooting; fuel tank, petcock, and fuel line service.
Brake System:
Front and rear brake caliper service, master cylinder overhaul, brake line replacement, bleeding procedures, and disc/pad inspection.
Suspension System:
Front fork (telescopic) disassembly, rebuilding, and adjustment; rear shock absorber replacement and service.
Frame And Bodywork:
Frame inspection, component mounting, fender service, seat removal/installation, and basic body panel adjustments.
Maintenance:
Oil changes, filter replacement, spark plug replacement, chain adjustment, brake fluid checks, battery maintenance, tire pressure checks, and general lubrication points.
Repair:
Complete engine rebuild, transmission overhaul, carburetor tuning, electrical system troubleshooting and repair, brake system servicing, and suspension component replacement.
Troubleshooting:
Systematic diagnostic charts and procedures for identifying and resolving common mechanical and electrical issues.
Depth:
Comprehensive, covering everything from routine maintenance to complete engine and transmission rebuilds, including detailed torque specifications and clearances.
Engine Type:
Air-cooled, 45-degree V-twin, OHV
Displacement:
80 cubic inches (approx. 1310 cc)
Bore X Stroke:
3.4375 in x 4.25 in (87.3 mm x 108 mm)
Horsepower:
Estimated 60-65 HP (Varies slightly with tuning and specific model year revisions)
Torque:
Estimated 70-75 ft-lbs (Approx. 95-102 Nm) at lower RPM
Carburetor:
Keihin Butterfly (e.g., 36mm or 40mm, depending on specific sub-model or OEM fitment)
Fuel Type:
Unleaded Gasoline (Octane rating as recommended in manual, typically 87 or higher)
Ignition Type:
Battery and Coil, points or electronic ignition (depending on factory or aftermarket upgrade)
Transmission Type:
4-speed Constant Mesh, Foot Shift, Hand Clutch
Optional Transmission:
None from factory for this specific model year and trim.
Primary Drive:
Enclosed chain drive, wet clutch
Clutch Type:
Wet, multi-plate
Wheelbase:
Approximately 62.5 inches (1588 mm)
Length:
Approximately 88.5 inches (2248 mm)
Dry Weight:
Approximately 550-580 lbs (250-263 kg)
Fuel Capacity:
3.5 US gallons (13.2 liters) for the Fat Bob tank
Oil Capacity:
Approximately 3 quarts (2.8 liters)
Safety Ratings:
Motorcycles of this era do not have standardized crash test ratings like automobiles. Safety is primarily addressed through rider skill and adherence to maintenance.
Active Safety:
Disc Brakes (Front & Rear), Neutral Indicator Light.
Passive Safety:
Sturdy frame construction, integrated lighting systems (headlight, taillight, turn signals).
Engine Oil Change:
Every 2,000-3,000 miles or annually (refer to manual for precise interval and conditions).
Transmission Oil Change:
Every 5,000-6,000 miles or annually.
Primary Chain Tension:
Check and adjust every 2,000-3,000 miles.
Spark Plugs:
Inspect every 5,000 miles, replace as needed.
Engine Oil:
Harley-Davidson 20W50 motorcycle oil (or equivalent high-quality V-twin specific oil).
Transmission Oil:
Harley-Davidson Formula + Transmission Oil (or equivalent wet-clutch compatible oil).
Primary Chain Case Oil:
Harley-Davidson Formula + Transmission Oil (or equivalent).
Brake Fluid:
DOT 4 (check manual for specific recommendation, typically non-silicone based)
Shifter Pawl:
Wear on the shifter pawl can lead to missed shifts or difficulty engaging gears.
Carburetor Leaks:
Older Keihin carburetors can develop fuel leaks due to aging gaskets and seals.
Primary Chain Tensioner:
The stock primary chain tensioner can wear out, leading to excessive chain slap.
Oil Leaks:
Common across many vintage motorcycles, can originate from pushrod tubes, crank seals, or gaskets.
Ignition System:
Points-based ignition systems require regular maintenance and can be prone to misfires if not set correctly.
Heritage:
Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a long history of producing powerful, characterful V-twin motorcycles.
Fxwg Evolution:
The FXWG (often called the 'Wide Glide') was introduced in 1980, featuring a distinctive wide front fork rake and a longer front end. The 1984 model year saw refinements to the Shovelhead engine and the chassis as Harley-Davidson navigated through this transitional period.
Production Period:
The Shovelhead engine was produced from 1966 to 1984. The FXWG model itself spanned from 1980 to 1986 before being succeeded by the Softail models.
Recognitions:
While specific awards for this model year are not readily documented, the Shovelhead era is widely celebrated by enthusiasts and has earned a significant place in motorcycling history and culture.
Owner Satisfaction:
High among dedicated Harley-Davidson enthusiasts who appreciate the classic riding experience and mechanical character.
Certifications:
N/A for this vehicle category.
