Market Segment:
Cruiser motorcycle, specifically within the Harley-Davidson Dyna family, known for its blend of traditional styling and modern performance for its era.
Competitors:
During the 1991-1998 period, key competitors included other American V-twin manufacturers like Indian (in its various resurrected forms) and aftermarket custom bike builders, as well as some Japanese manufacturers offering cruiser-style motorcycles.
Vehicle Key Features:
The FXDB Daytona Dyna represented a sportier variant of the Dyna line, often featuring unique paint schemes, upgraded suspension components, and a focus on handling for its time. It was powered by Harley-Davidson's Evolution V-twin engine.
Applicable Years:
1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Estimated Page Count:
High (typically 300-600 pages for this era of Harley-Davidson service manuals)
Manual Type:
Service Manual / Workshop Repair Manual
Engine Systems:
Engine overhaul, top-end assembly, bottom-end assembly, lubrication system, cooling system (if applicable), fuel delivery, ignition system, starting system, charging system
Drivetrain Systems:
Transmission overhaul and repair, clutch service and adjustment, primary drive components, final drive belt maintenance and replacement
Chassis Systems:
Frame inspection and repair, suspension (front forks, rear shocks) overhaul and adjustment, steering system service, wheel and tire maintenance, brake system overhaul and bleeding (front and rear), electrical system diagnostics and repair, lighting system, instrumentation
Fuel And Emission Controls:
Carburetor tuning and adjustment, fuel tank and lines, emission control systems (if applicable per region).
Exhaust System:
Exhaust pipe removal, installation, and inspection; mufflers.
Maintenance Procedures:
Routine servicing, oil changes, filter replacements, spark plug service, drive belt inspection and adjustment, brake pad replacement, fluid level checks and top-offs
Repair Procedures:
Component-level repairs for engine, transmission, brakes, electrical system, fuel system, and suspension. Includes detailed disassembly and reassembly instructions.
Troubleshooting Guidance:
Diagnostic charts and flowcharts for identifying and resolving common mechanical and electrical issues.
Diagnostic Procedures:
Systematic troubleshooting for electrical faults, engine performance issues, and drivetrain problems, often using wiring diagrams and schematic interpretations.
Technical Depth:
Comprehensive; covers everything from basic maintenance to complete engine and transmission rebuilds, including electrical system diagnostics.
Rebuild Procedures:
Complete engine and transmission rebuilds, including cylinder head disassembly, piston removal, crankshaft inspection, and gear set servicing.
Detail Level:
Detailed, with step-by-step instructions and torque specifications for virtually every component.
PDF Quality:
High-resolution scans, typically with searchable text and clear diagrams.
Searchable Text:
Yes (if scanned properly and OCR'd)
Diagram Clarity:
Excellent clarity for exploded views, wiring diagrams, and component illustrations.
Image Resolution:
High resolution, suitable for printing diagrams and text.
Binding Type:
N/A (Digital PDF format)
Paper Type:
N/A (Digital PDF format)
Engine Type:
Air-cooled, Evolution (Evo) V-twin
Engine Displacement:
1340 cc (81.9 cubic inches)
Bore X Stroke:
3.496 in. x 4.250 in. (88.8 mm x 108 mm)
Compression Ratio:
8.5:1 (typical for this era)
Valve Train:
Overhead Valve (OHV), 4 valves total (2 per cylinder), pushrod actuated.
Horsepower Approximate:
Approximately 60-65 HP (at crank, depending on tuning and specific year)
Torque Approximate:
Approximately 70-75 ft-lbs @ 3200 RPM (at crank, depending on tuning and specific year)
Fuel Delivery System:
Keihin CV (Constant Velocity) carburetor, typically 40mm (specific model may vary slightly across years)
Fuel Type:
Unleaded gasoline, 90+ octane recommended
Ignition Type:
Electronic ignition with breakerless electronic spark advance
Oil Capacity:
3.5 US quarts (3.3 liters) with filter change
Oil Type Recommendation:
Harley-Davidson SYN3 (synthetic) or premium V-twin specific motorcycle oil, SAE 20W-50 recommended for most conditions.
Transmission Type:
5-speed constant mesh, helical gear
Optional Transmission:
N/A (5-speed was standard)
Clutch Type:
Wet, multi-plate
Primary Drive:
Duplex chain
Transmission Oil Type:
Harley-Davidson Formula + Transmission/Primary Chaincase Lubricant (or equivalent GL-4 gear oil, 75W-90)
Transmission Oil Capacity:
23.7 US fluid ounces (0.7 liters)
Overall Length:
Approximately 91.9 inches (2334 mm)
Wheelbase:
Approximately 62.2 inches (1580 mm)
Dry Weight:
Approximately 600 lbs (272 kg)
Gross Vehicle Weight Rating:
Approximately 1050 lbs (476 kg)
Fuel Tank Capacity:
4.0 US gallons (15.1 liters)
Safety Ratings:
N/A (Motorcycles are not typically rated by organizations like NHTSA or IIHS in the same manner as cars. Safety is primarily determined by rider skill and adherence to road regulations.)
Active Safety Features:
Dual-piston front and rear disc brakes, responsive suspension geometry.
Passive Safety Features:
Strong steel frame construction, rider ergonomics designed for control.
Infotainment System:
Basic instrumentation including speedometer, odometer, trip meter, tachometer (optional on some trims), and indicator lights. No integrated audio or navigation systems.
Driver Assistance Features:
None typical for this era. Safety and control rely on mechanical systems and rider input.
Initial Service Interval:
First service typically around 1,000 miles (1,600 km) - includes engine oil and filter change, primary chain tension adjustment, and general inspection.
Subsequent Service Intervals:
Routine oil changes every 2,500-5,000 miles (4,000-8,000 km) or annually, whichever comes first. Transmission and primary chaincase oil changes every 5,000-10,000 miles (8,000-16,000 km). Drive belt inspection/tensioning at regular intervals (e.g., 2,500 miles).
Engine Oil Type:
SAE 20W-50 motorcycle oil (synthetic or conventional V-twin specific).
Primary Chaincase Oil Type:
Harley-Davidson Formula +, or equivalent GL-4 gear oil.
Transmission Oil Type:
Harley-Davidson Formula +, or equivalent GL-4 gear oil.
Brake Fluid Type:
DOT 4 heavy-duty hydraulic fluid.
Fork Oil Type:
Refer to manual for specific weight (e.g., Harley-Davidson Suspension Fluid 10W, or equivalent).
Common Issues Engine:
Cam chain tensioner wear (especially earlier models before updates), potential for oil leaks at rocker boxes and base gaskets, carburetor tuning adjustments.
Common Issues Drivetrain:
Primary chain adjustment is crucial; drive belt tension needs regular checking to prevent premature wear.
Common Issues Electrical:
Aging wiring harnesses can develop issues, voltage regulator or stator failure, starter solenoid problems.
Common Issues Suspension:
Fork seals can weep over time; rear shock bushings may require replacement.
Brand Heritage:
Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich history of producing V-twin powered motorcycles known for their distinctive sound, styling, and rider experience.
Dyna Family Introduction:
The Dyna line was introduced in 1991 as a new platform for Harley-Davidson, featuring a rubber-mounted engine for reduced vibration and a revised frame design compared to the preceding FXR models. The FXDB Daytona was an early model in this successful family.
Production Period For Model:
The FXDB Daytona Dyna specifically, as part of the broader Dyna Super Glide family, was produced throughout the 1991-1998 model years, with potential minor variations year-to-year.
Vehicle Recognitions:
While specific awards for the FXDB Daytona Dyna are not widely publicized, the Harley-Davidson Dyna platform as a whole has been recognized for its robust engineering and iconic American styling, becoming a popular choice for both stock riders and customizers.
Vehicle Ratings:
Consumer and rider reviews consistently praise the torque delivery, handling (for its class and era), and the unmistakable Harley-Davidson riding experience.
Vehicle Certifications:
Compliant with US EPA and DOT regulations for the years of manufacture.
