Segment:
Cruiser Motorcycle
Competitors:
Directly competes with other Harley-Davidson models of the era and other V-twin cruiser manufacturers like Indian, Custom Chopper builders, and Japanese cruisers with similar displacement engines.
Platform:
The FXDB Dyna was part of Harley-Davidson's Twin Cam Dyna chassis platform, known for its robust handling and V-twin rumble.
Target Audience:
Riders seeking a classic American cruiser experience, customizable platform, and a strong community following.
Covered Years:
1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Estimated Page Count:
300-500 (typical for comprehensive workshop manuals of this era, exact count not provided)
Type:
Workshop Service Repair Manual
Engine:
Engine overhaul, assembly, disassembly, tuning, cooling system, lubrication system, ignition system, fuel system (carburetor tuning and rebuild), exhaust system.
Transmission:
Gearbox overhaul, clutch service, primary drive, secondary drive, maintenance, troubleshooting.
Chassis And Suspension:
Frame, front fork (fork seals, oil changes), rear shock absorbers, wheel bearings, steering head bearings, swingarm.
Brakes:
Brake caliper service, master cylinder overhaul, brake fluid replacement, bleeding procedures, pad replacement, rotor inspection.
Electrical System:
Wiring diagrams, battery service, charging system (stator, regulator/rectifier), ignition system components, lighting, starting system, diagnostics, troubleshooting electrical faults.
Fuel System:
Carburetor identification, tuning, jetting, float bowl adjustment, fuel pump (if applicable), fuel lines, fuel filter.
Bodywork And Trim:
Fender removal/installation, fuel tank maintenance, seat removal, handlebar installation, basic fairing/component removal and reassembly.
Maintenance:
Regular service intervals, oil changes, filter replacements, chain adjustment/lubrication, spark plug replacement, air filter service, brake inspections.
Troubleshooting:
Diagnostic procedures for common running issues, electrical faults, starting problems, and performance inconsistencies.
Repair And Overhaul:
Detailed step-by-step instructions for component disassembly, cleaning, inspection, repair, and reassembly of major systems.
Torque Specifications:
Crucial torque values for fasteners across all systems to ensure proper assembly and prevent damage.
Depth:
Comprehensive, covering from basic scheduled maintenance to full engine and transmission rebuilds. Assumes a mechanically inclined user with access to standard motorcycle tools.
Engine Type:
Air-cooled, Evolution (V-twin) engine
Displacement:
80 cubic inches (1339.8 cc) - commonly known as the 1340cc Evolution or Evo engine
Bore X Stroke:
3.44 in x 4.25 in (87.4 mm x 107.95 mm)
Compression Ratio:
8.3:1 (typical for this engine)
Horsepower:
Approximately 65-70 HP (estimates vary by source and tuning)
Torque:
Approximately 80-85 ft-lbs (108-115 Nm) at ~3000 RPM (estimates vary)
Carburetor:
Keihin CV (Constant Velocity) 40mm carburetor
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Capacity:
3.5 US quarts (3.3 liters) with filter change (approximate)
Oil Type:
Harley-Davidson SAE 20W-50 motorcycle oil or equivalent API SG or higher rated oil.
Type:
5-speed manual transmission
Gear Ratios:
Specific ratios available in the manual, typically close-ratio for performance.
Type:
N/A (All FXDB Dyna models in this range were 5-speed manual)
Primary Drive:
Chain drive (to transmission)
Secondary Drive:
Belt drive (from transmission to rear wheel)
Fluid Type:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant or equivalent.
Fluid Capacity:
Approximately 1 quart (0.95 L) for transmission, and 1 quart for primary (separate reservoirs).
Wheelbase:
Approximately 63.5 inches (1613 mm)
Length:
Approximately 90.0 inches (2286 mm)
Seat Height:
Approximately 26.5 inches (673 mm) unladen
Dry Weight:
Approximately 590 lbs (268 kg)
Gross Vehicle Weight Rating Gvwr:
Approximately 925 lbs (420 kg)
Front Tire Size:
100/90-19 57H (typical)
Rear Tire Size:
130/90-16 67H (typical)
Wheel Type:
Spoked or cast aluminum wheels, depending on specific trim/options.
Crash Test Ratings:
N/A (Motorcycles are not typically subjected to standardized automotive crash test ratings).
Braking System:
Dual disc front brakes, single disc rear brake. While ABS was not standard on most Dyna models of this era, some later models may have had it as an option or dealer retrofit.
Lighting:
Halogen headlight, tail light, brake light, turn signals.
Audio System:
Typically no integrated infotainment system. Riders would often add aftermarket audio systems or rely on personal devices.
Gauges And Displays:
Analog speedometer, tachometer (optional on some models), odometer, trip meter, and indicator lights for turn signals, oil pressure, and high beam.
ABS:
Anti-lock Braking System (ABS) was generally not standard equipment on FXDB Dyna models from 1991-1998.
Connectivity Features:
No built-in Bluetooth or smartphone connectivity. Customization often involved aftermarket solutions.
Oil Change Interval:
Every 5,000 miles or annually, whichever comes first. Primary and transmission fluid changes are also recommended at similar intervals or as specified in the manual.
Spark Plug Replacement:
Typically every 10,000-15,000 miles, depending on plug type.
Belt Drive Tension:
Check and adjust belt tension every 5,000 miles.
Fork Oil Type:
Harley-Davidson Type E or Type H fork oil, or equivalent (viscosity varies, specified in manual).
Brake Fluid Type:
DOT 5 silicone brake fluid is typically specified for Harley-Davidson motorcycles of this era.
Crankcase Through Bolt Tightening:
Early Twin Cam engines (though the Evo engine predates Twin Cam, some design principles carry over for common maintenance checks) can develop issues if crankcase through-bolts are not properly torqued and maintained, leading to potential leaks or cylinder base issues. The manual would detail proper torque sequences.
Carburetor Tuning And Idling:
The Keihin CV carburetor, while reliable, may require periodic adjustment for optimal performance, especially with modifications or altitude changes. Idle speed and mixture adjustments are common maintenance tasks covered.
Starter Drive Engagement:
Some models might exhibit starter drive engagement issues; the manual would provide diagnostic steps and part replacement procedures.
Oil Filter Part Number:
Commonly Harley-Davidson part number 63796-77A or 63805-80A (check specific manual for exact fitment).
Air Filter Part Number:
Varies by original equipment or aftermarket replacement, but generally Harley-Davidson part number 29461-99 or equivalent.
Heritage:
Harley-Davidson, founded in 1903, has a long and storied history of producing iconic American motorcycles, synonymous with freedom and the open road.
Dyna Lineage:
The Dyna line, introduced in 1991, replaced the FXR models and featured a new frame design with isolated V-twin engines, differentiating it from the Softail's rigid frame.
Fxdb Specifics:
The FXDB Dyna Super Glide was a core model in the Dyna lineup, often featuring a stripped-down, classic cruiser aesthetic that appealed to a wide range of riders, especially those who enjoyed customization.
Production Period:
1991-1998 for the FXDB Dyna model covered by this manual. The Dyna platform continued to evolve until its discontinuation in 2017.
Brand Recognition:
Harley-Davidson motorcycles are consistently recognized for their iconic design, sound, and rider experience, fostering a loyal global following.
Rider Satisfaction:
While specific ratings for the 1991-1998 FXDB Dyna are not readily available as formal awards, these models are generally well-regarded within the cruiser community for their blend of performance and classic styling.
