🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLSTCI Heritage Softail Classic

Year:

2004

Sub Model:

Heritage Softail ST EFI

Engine Type:

EFI (Electronic Fuel Injection)

👋 Introduction

Market Position:

The Harley-Davidson Heritage Softail Classic (FLSTCI) in 2004 was positioned as a classic cruiser, blending retro styling with modern V-twin performance. It appealed to riders seeking the quintessential Harley-Davidson experience with comfort and touring capability.

Competitive Analysis:

Competed with other American V-twin cruisers from manufacturers like Indian, and to some extent, Japanese V-twin models offering similar styling and displacement, though Harley-Davidson held a distinct cultural cachet.

Key Features:

Iconic retro styling, whitewall tires, classic chrome accents, large windshield, comfortable seating, V-twin engine, and the renowned Harley-Davidson sound and feel.

📋 Manual Details

Coverage Areas:

Comprehensive repair, maintenance, adjustments, removal, installation, disassembly, assembly, troubleshooting, and diagnostics for the Harley-Davidson FLSTCI Heritage Softail ST EFI 2004.

Page Count:

1068

Manual Type:

Workshop Service Manual / Repair Manual

Language:

English

Format:

PDF (Digital Download)

📖 Manual Coverage

Systems Covered:

Engine, Transmission, Drivetrain, Electrical System, Fuel System, Ignition System, Exhaust System, Cooling System (if applicable, though typically air-cooled), Brakes, Suspension (Front & Rear), Frame, Chassis, Bodywork, Controls, Lubrication System, Wheels & Tires, Instruments & Gauges, Lighting System, Starting System, Charging System.

Procedures Included:

Routine maintenance, scheduled service, diagnostic procedures, troubleshooting guides, removal and installation of components, disassembly and assembly of major assemblies, adjustment procedures (e.g., clutch, brakes, ignition timing), wiring diagrams, component testing, fluid level checks and changes, lubrication specifications, wear limits, torque specifications, replacement procedures for wear items.

Technical Depth:

Highly detailed, comprehensive step-by-step procedures with pictorial diagrams, exploded views, and photographs. Covers everything from basic adjustments to complete engine and transmission overhauls. Includes specialized tool references and usage illustrations. Suitable for both professional mechanics and experienced DIY enthusiasts.

📊 Manual Specifications

File Format:

PDF

Print Quality:

Printable (high-resolution, suitable for printing any or all pages)

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

Software Requirement:

Adobe Reader (or compatible PDF viewer)

Compatibility:

Windows, Mac, Linux OS

⚙️ Engine Specifications

Engine Type:

Harley-Davidson Twin Cam 88B (Fuel Injected)

Engine Displacement:

1450cc (88 cubic inches)

Bore X Stroke:

3.75 in. x 4.00 in. (95.25 mm x 101.60 mm)

Compression Ratio:

8.8:1

Horsepower:

Approximately 60-65 HP (Varies slightly by source and measurement)

Torque:

Approximately 75-80 lb-ft (Varies slightly by source and measurement)

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI)

Cooling System:

Air-Cooled

Lubrication System:

Dry Sump

🔧 Transmission

Transmission Type:

5-Speed Manual

Clutch Type:

Wet, multi-plate

Drive Type:

Belt Drive

📐 Dimensions

Overall Length:

Approx. 93.7 inches (2380 mm)

Wheelbase:

Approx. 64.5 inches (1638 mm)

Dry Weight:

Approx. 684 lbs (310 kg)

Gross Vehicle Weight Rating:

Approx. 1030 lbs (467 kg)

Fuel Tank Capacity:

4.0 gallons (15.1 liters)

🛡️ Safety Features

Safety Ratings:

N/A (Motorcycle safety is assessed differently than cars, focus on component integrity and rider protection).

Active Safety Features:

Dual-piston front and rear disc brakes, responsive suspension, proper tire maintenance is critical.

Passive Safety Features:

Sturdy frame construction, comprehensive lighting system, rider awareness is the primary passive safety element.

💡 Technology Features

Infotainment System:

Stock 2004 models typically featured a basic analog speedometer and odometer, with indicator lights. Higher-end or accessory options might include aftermarket audio systems.

Driver Assistance Features:

N/A (No electronic driver assistance features typical of modern vehicles).

Connectivity Options:

N/A (No integrated connectivity features).

🔧 Maintenance

Initial Service:

Typically around 1,000 miles (1600 km) for initial break-in service, including oil change, filter replacement, and general inspection. Subsequent services are usually at 5,000 mile (8000 km) or annual intervals.

Major Service Intervals:

Includes spark plug replacement, transmission and primary chaincase fluid changes, and brake fluid flush, usually every 10,000-20,000 miles (16,000-32,000 km) or as specified in the manual.

Engine Oil Type:

Harley-Davidson recommends specific V-Twin engine oils, typically SAE 20W50 or 10W-40, with a focus on motorcycle-specific formulations meeting Harley-Davidson specifications (e.g., Harley-Davidson SYN3 or equivalent).

Transmission Oil Type:

Harley-Davidson recommends specific transmission fluids, often SAE 80W-90 hypoid gear oil, or Harley-Davidson Formula+ Transmission Lubricant.

Primary Chaincase Lubricant:

Harley-Davidson Formula+ Transmission Lubricant or equivalent primary lubricant.

Brake Fluid Type:

DOT 4

Engine Oil Capacity:

Approx. 4.0 US quarts (3.8 liters) with filter change.

Transmission Oil Capacity:

Approx. 25-28 fl oz (0.74-0.83 liters).

Primary Chaincase Capacity:

Approx. 25-28 fl oz (0.74-0.83 liters).

Known Issues:

Potential issues for this era include cam chain tensioner wear (especially earlier Twin Cam versions, though the 88B addresses some of this), regulator/stator failures, occasional primary drive chain adjustments, and the general maintenance needs of a V-twin engine. The EFI system can also require tuning or diagnostics over time.

Oil Filter Part Number:

Harley-Davidson Part Numbers commonly include 63796-77A, 63731-87B, or 26012-99 (for Twin Cam era). Check manual for precise fitment.

Air Filter Part Number:

Various part numbers depending on the stock or aftermarket configuration. Refer to the manual or parts catalog for specific fitment.

📚 Vehicle History

Brand Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer renowned for its V-twin engines, distinctive styling, and strong rider community. The Softail platform itself was introduced in the early 1980s, revolutionizing the look of rigid-tail choppers with hidden rear suspension.

Model Evolution:

The Heritage Softail line evolved from the original Softail models, emphasizing classic styling cues such as the teardrop fuel tank, wide handlebars, wire-spoke wheels, and often chrome and leather accents. The 'CI' designation in FLSTCI typically signifies it's a fuel-injected model, a significant upgrade for emissions and performance.

Production Years For Model:

The FLSTCI Heritage Softail Classic was produced for several years, with the 2004 model being part of this lineage.

🏆 Awards & Recognition

Recognitions:

Harley-Davidson motorcycles, particularly the Softail line, are consistently recognized for their iconic styling, riding experience, and brand loyalty, although specific 'awards' for individual model years are less common in the automotive press compared to cars.