🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXDWG Wide Glide Dyna

Year:

2004

Product Type:

Service Manual / Workshop Repair Manual

Oem Manual Number:

99493-04

Platform Code:

Dyna

👋 Introduction

Category:

Cruiser Motorcycle

Target Audience:

Owners of 2004 Harley-Davidson FXDWG Wide Glide Dyna, independent repair shops, and motorcycle technicians.

Key Competitors:

Other cruiser motorcycles of the era from manufacturers like Indian, Victory, and custom builders.

Model Distinctiveness:

The Wide Glide Dyna is characterized by its extended front end, raked-out forks, and classic chopper styling, offering a distinctive riding experience.

Manual Value Proposition:

Provides essential information for maintaining, troubleshooting, and repairing the 2004 FXDWG, enabling owners to perform tasks themselves or understand professional service.

📋 Manual Details

Comprehensive Repair And Overhaul:

Full coverage for repair and overhaul procedures.

Estimated Pages:

Approximately 600-800 pages (typical for a complete Harley-Davidson service manual of this era).

Type:

Service Manual / Workshop Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Complete engine overhaul, disassembly, assembly, tuning, lubrication, cooling system (air-cooled).

Fuel System:

Carburetor (likely Keihin CV 40mm), fuel lines, fuel tank, fuel pump (if applicable), fuel filter.

Ignition System:

Spark plugs, ignition coils, electronic control module (ECM), wiring diagrams.

Transmission:

5-speed Cruise Drive transmission, clutch, primary drive, final drive, lubrication, service.

Brakes:

Front and rear brake systems, hydraulic lines, master cylinders, calipers, pads, rotors, bleeding procedures.

Suspension:

Front fork (likely Showa 49mm), rear shock absorbers, swingarm, bearings, service and adjustment.

Electrical System:

Battery, charging system (stator, regulator/rectifier), lighting, starter motor, horn, wiring diagrams, fuses, relays.

Frame And Bodywork:

Frame inspection, body panels, fenders, fuel tank mounting, seat, handlebars, controls, mounting hardware.

Wheels And Tires:

Wheel bearings, tire mounting and balancing, spoke tensioning (if applicable), valve stems.

Exhaust System:

Exhaust pipes, mufflers, mounting, seals, emissions control components.

Routine Maintenance:

Oil changes, filter replacement, chain adjustment, brake checks, tire pressure, lubrication points.

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides.

Engine Rebuild:

Complete engine disassembly, inspection, component replacement, reassembly, and torque specifications.

Transmission Overhaul:

Clutch service, gear inspection, bearing replacement, primary drive adjustments.

Electrical Diagnostics:

Wiring diagram interpretation, component testing, fault finding for electrical systems.

Suspension Service:

Fork seal replacement, fork oil changes, rear shock adjustments and replacements.

Brake System Maintenance:

Brake pad replacement, caliper service, brake fluid flush and bleeding.

Carburetor Adjustment And Rebuild:

Idle speed adjustment, mixture screw setting, jetting recommendations, diaphragm inspection.

Wheel And Tire Service:

Wheel bearing replacement, tire mounting and balancing.

Depth:

Comprehensive for both DIY enthusiasts and professional technicians, covering basic maintenance to complete engine and transmission rebuilds.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely searchable text for easy navigation and information retrieval.

Image Resolution:

High-resolution images, diagrams, and schematics for clarity.

Binding:

N/A (Digital PDF format)

Paper:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 88 V-Twin

Displacement:

1450 cc (88 cubic inches)

Bore X Stroke:

3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)

Compression Ratio:

8.8:1

Valve Train:

Overhead valves (OHV), 2 valves per cylinder, pushrod actuated

Fuel System:

Carburetor (Harley-Davidson Keihin CV 40mm)

Ignition System:

Electronic, single spark

Lubrication System:

Dry sump, oil tank mounted in the frame.

Horsepower:

Approximately 65-70 HP (at crankshaft, depending on tuning and exhaust)

Torque:

Approximately 80-86 ft-lbs @ 3200 RPM (at crankshaft)

🔧 Transmission

Type:

5-speed Cruise Drive Manual

Primary Drive:

Duplex chain, wet clutch

Final Drive:

Belt drive

Clutch Type:

Wet, multi-plate

Transmission Oil Type:

Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent SAE 50 motorcycle oil.

📐 Dimensions

Wheelbase:

Approximately 66.7 inches (1694 mm)

Length:

Approximately 93.0 inches (2362 mm)

Ground Clearance:

Approximately 4.5 inches (114 mm)

Dry Weight:

Approximately 635 lbs (288 kg)

Gross Vehicle Weight Rating:

Approximately 1025 lbs (465 kg)

🛡️ Safety Features

Crash Test Ratings:

Not applicable to motorcycles in the same way as automobiles; safety is primarily dependent on rider skill and adherence to road laws.

Braking System:

Dual-action, four-piston front caliper and single-action, two-piston rear caliper with hydraulic actuation.

Lighting:

Halogen headlight, taillight, brake light, front and rear turn signals.

Frame Construction:

Steel tube frame for rigidity and rider protection.

💡 Technology Features

Audio System:

Optional accessory audio systems were available, typically not integrated from the factory in this model year unless specified as an option.

ABS:

Anti-lock Braking System (ABS) was typically an optional feature on Harley-Davidson motorcycles of this era; consult specific vehicle VIN for availability.

Diagnostics:

The manual covers diagnostic procedures using Harley-Davidson's Digital Technician or equivalent methods, allowing for fault code reading and data analysis.

🔧 Maintenance

Engine Oil Change:

Every 2,500-5,000 miles or annually, whichever comes first (refer to specific manual for precise interval).

Transmission Oil Change:

Every 10,000 miles or as per manual recommendation.

Primary Chaincase Oil Change:

Every 5,000 miles or annually.

Spark Plug Replacement:

Every 10,000-15,000 miles.

Belt Drive Tension Check:

Every 2,500-5,000 miles.

Engine Oil:

Harley-Davidson SYN3 Synthetic Motorcycle Oil (20W-50) or equivalent API SG or higher.

Transmission Oil:

Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or SAE 50 motorcycle oil.

Brake Fluid:

DOT 4 Synthetic Brake Fluid.

Cam Chain Tensioners:

Early Twin Cam 88 engines are known to have issues with the cam chain tensioners, which can wear and fail. This is a critical issue that the manual would address in troubleshooting and repair.

Oil Leaks:

Common areas for oil leaks include the primary drive, transmission, and engine base gasket; the manual provides detailed procedures for diagnosis and repair.

Carburetor Tuning:

The CV carburetor can sometimes require fine-tuning for optimal performance and emissions, especially after modifications.

📚 Vehicle History

Brand Origin:

Harley-Davidson Motor Company, founded in 1903 in Milwaukee, Wisconsin, USA.

Dyna Line Introduction:

The Dyna line was introduced in 1991, known for its blend of classic styling and modern engineering. The Wide Glide variant has been a staple of the line for its distinctive aesthetics.

Twin Cam Introduction:

The Twin Cam 88 engine was introduced in 1999, replacing the Evolution engine, and represented a significant upgrade in performance and reliability.

Manufacturing Location:

United States (various Harley-Davidson assembly plants).

🏆 Awards & Recognition

Industry Standing:

The Dyna platform and the Twin Cam 88 engine are considered iconic in the cruiser segment, known for their robust engineering and classic styling. Harley-Davidson as a brand consistently ranks high in customer satisfaction and brand loyalty.