🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXSTSI Softail Springer

Year:

2004

Sub Model:

Softail Springer EFI

Chassis Code:

FXSTSI

Engine Code Prefix:

1HD1

👋 Introduction

Segment:

Cruiser Motorcycle

Target Audience:

Harley-Davidson owners, independent repair shops, and motorcycle enthusiasts seeking detailed technical guidance.

Differentiation:

The FXSTSI Softail Springer is distinguished by its iconic Springer front fork, offering a classic aesthetic and a unique riding feel, combined with Harley-Davidson's robust Evolution engine and fuel injection for the 2004 model year.

Model Features:

Custom styling, extended wheelbase, Springer front suspension, Harley-Davidson Evolution V-twin engine, Electronic Fuel Injection (EFI), 5-speed transmission.

Manual Value Proposition:

Provides authorized repair procedures and specifications, crucial for maintaining the performance, safety, and longevity of a complex machine like the FXSTSI.

📋 Manual Details

Primary Coverage:

Full Service, Repair, and Workshop

Estimated Page Count:

Approx. 600-800 pages (typical for this era and scope)

Manual Type:

Service Manual / Workshop Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Powertrain:

Engine assembly, disassembly, overhaul, diagnostics; Fuel system (EFI); Ignition system; Exhaust system; Transmission (5-speed Cruise Drive); Clutch operation and adjustment; Primary drive system.

Chassis:

Frame and subframe; Front suspension (Springer fork assembly); Rear suspension (Softail swingarm and shock absorbers); Steering system; Wheel and tire service; Brake system (front and rear, hydraulic).

Electrical:

Wiring diagrams; Battery and charging system; Lighting system (headlight, taillight, signals); Instrumentation and gauges; Ignition switch and security system; Starter motor; Fuel injection control module (ECM/VCM) and sensor diagnostics.

Bodywork:

Fender removal and installation; Fuel tank servicing; Seat removal; Handlebar and control mounting; Fairing (if applicable) and accessory mounting.

Maintenance:

Scheduled maintenance intervals (oil changes, filter replacements, inspections); Lubrication procedures; Tire pressure checks; Brake pad replacement; Chain adjustment (if applicable, though this model is belt drive).

Troubleshooting:

Diagnostic flowcharts for common issues (e.g., starting problems, engine misfires, electrical faults); Symptom-based troubleshooting guides.

Repair:

Component-level disassembly, inspection, repair, and reassembly for all major systems; Engine rebuild procedures; Transmission overhaul; Suspension component replacement; Brake caliper service; EFI system diagnostics and repair.

Technical Specifications:

Torque specifications for all fasteners; Clearances and tolerances for engine and chassis components; Fluid capacities and types; Electrical specifications (voltages, resistances).

Depth:

Comprehensive, covering everything from basic rider maintenance to in-depth engine and transmission rebuilds, including EFI system diagnostics.

📊 Manual Specifications

Digital Format:

PDF

Searchability:

Likely text-searchable, allowing quick navigation to specific topics.

Quality:

High-resolution scans of original factory documentation, ensuring clarity of diagrams and text.

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Family:

Harley-Davidson Evolution (Big Twin)

Engine Configuration:

45-degree V-twin, air-cooled

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 (Typical)

Horsepower Estimate:

Approximately 65-70 HP (at crank, unconfirmed without specific dynamometer data)

Torque Estimate:

Approximately 86-90 ft-lbs (at crank, unconfirmed without specific dynamometer data)

Fuel Delivery:

Electronic Fuel Injection (EFI) - Sequential Port Injection

Throttle Body Size:

40 mm (Typical)

Valvetrain Type:

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

🔧 Transmission

Transmission Type:

5-speed Constant Mesh, Manual

Transmission Name:

Cruise Drive

Optional Transmissions:

None offered from factory for this model.

Primary Drive:

Duplex chain, wet clutch, enclosed in primary chain case.

Final Drive:

Belt Drive

Transmission Fluid Type:

Harley-Davidson Formula+ Transmission Lubricant or equivalent SAE 50W Motorcycle Gear Oil.

Transmission Fluid Capacity:

Approximately 24 US fl oz (0.71 L)

📐 Dimensions

Length:

Approx. 93.0 inches (2362 mm)

Width:

Approx. 37.0 inches (940 mm)

Height:

Approx. 51.0 inches (1295 mm)

Wheelbase:

Approx. 65.1 inches (1654 mm)

Ground Clearance:

Approx. 4.7 inches (119 mm)

Dry Weight:

Approx. 645 lbs (292.6 kg)

Gross Vehicle Weight Rating:

Approx. 1025 lbs (465 kg)

Fuel Tank Capacity:

5.0 US gallons (18.9 L)

🛡️ Safety Features

Safety Ratings:

Motorcycles are not typically rated by agencies like NHTSA or IIHS. Safety is determined by design and rider operation.

Braking System:

Dual-piston front caliper with 292mm disc, Single-piston rear caliper with 292mm disc. (Note: ABS was not a standard or widely available option in 2004 for this model).

Lighting:

Halogen headlight, LED taillight, amber incandescent turn signals.

Frame Construction:

Steel frame and swingarm for rigidity and durability.

Tire Construction:

Tubeless radial tires for improved stability and puncture resistance.

💡 Technology Features

Infotainment System:

Basic system typically consisting of speedometer, tachometer (optional or integrated), odometer, trip meters, and indicator lights. No advanced infotainment or audio systems standard.

Driver Assistance Features:

None.

Connectivity Features:

None.

Diagnostic Interface:

Diagnostic connector for EFI system diagnostics (e.g., using a Harley-Davidson Digital Technician tool). Manual covers code reading and parameter interpretation.

🔧 Maintenance

Engine Oil Change:

Every 5,000 miles (8,000 km) or annually, whichever comes first. Includes oil filter replacement.

Primary Chain Case Oil:

Check level at 1,000 miles (1,600 km), then every 10,000 miles (16,000 km). Change at 20,000 miles (32,000 km) or as needed.

Transmission Oil:

Check level at 1,000 miles (1,600 km), then every 10,000 miles (16,000 km). Change at 20,000 miles (32,000 km) or as needed.

Belt Drive Inspection:

Inspect belt tension and condition at every 5,000 miles (8,000 km) service.

Engine Oil Type:

Harley-Davidson SYN3 Synthetic Motorcycle Oil (or equivalent SAE 20W-50 Premium Motorcycle Oil).

Engine Oil Capacity:

Approximately 4 US quarts (3.8 L) with filter change.

Brake Fluid Type:

DOT 4 Synthetic Brake Fluid.

Common Wear Items:

Clutch friction plates, brake pads, wheel bearings, fork seals, starter drive gear wear.

Efi System:

Potential for sensor issues (e.g., Crank Position Sensor, Throttle Position Sensor) or fuel pump irregularities, though generally robust.

Springer Forks:

Requires regular inspection of the spring and damper mechanisms, and potential lubrication of the central pivot bolt.

Belt Drive:

Can develop tracking issues if misaligned; proper tension is critical.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer known for its V-twin engines, classic styling, and strong rider community.

Softail Lineage:

The Softail line, introduced in 1983, features a hidden rear suspension system designed to mimic the look of a rigid frame while providing modern comfort. The 'Springer' variant specifically incorporates the distinctive Springer front fork.

2004 Specifics:

The 2004 FXSTSI Softail Springer received the Electronic Fuel Injection (EFI) system, enhancing performance, fuel efficiency, and emissions compliance over earlier carbureted models. The 5-speed Cruise Drive transmission was also standard.

Production Years:

The Softail Springer model has had various iterations, with the FXSTSI designation generally covering the fuel-injected era. The 2004 model is part of this evolution.

🏆 Awards & Recognition

Model Recognition:

While specific awards for the 2004 FXSTSI are not widely publicized, the Softail Springer line consistently receives accolades for its iconic styling and classic V-twin experience.

Owner Satisfaction:

Harley-Davidson generally scores high in owner satisfaction, particularly for its brand loyalty and the visceral riding experience.