🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXSTSI Softail Springer

Year:

2004

Sub Model:

Softail Springer EFI

Vehicle Type:

Motorcycle

Engine Type:

V-Twin, Air-Cooled, Fuel-Injected

Chassis Code:

FXSTSI

👋 Introduction

Segment:

Cruiser motorcycle, specifically a custom styling variant with a distinctive Springer front end.

Target Audience:

Harley-Davidson enthusiasts, owners seeking to perform their own maintenance and repairs, customizers.

Competitors:

Other custom cruiser manufacturers and Harley-Davidson's own Softail and Dyna lines. Competes on styling, brand heritage, and the unique Springer front suspension.

Styling:

Iconic Softail profile with the retro Springer front fork, often equipped with custom paint and chrome accents.

Ride Experience:

Classic cruiser feel, comfortable for long-distance riding, distinct handling characteristics due to the Springer front end.

📋 Manual Details

Engine Coverage:

Complete engine overhaul, tuning, diagnostics, troubleshooting

Transmission Coverage:

Clutch, gearbox, drive belt, maintenance, repair

Electrical Coverage:

Ignition, charging system, lighting, wiring diagrams, accessories

Chassis Coverage:

Frame, suspension (front Springer fork and rear Softail), wheels, tires, brakes, steering

Bodywork Coverage:

Fuel tank, fenders, seat, controls, cables

Estimated Page Count:

600+

Manual Type:

Service and Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

All Systems:

Includes comprehensive coverage of all major mechanical, electrical, and chassis systems.

Routine Maintenance:

Oil changes, filter replacements, chain/belt adjustments, spark plug service, lubrication.

Major Repairs:

Engine rebuilds, transmission overhauls, suspension component replacement, brake system service.

Diagnostics Troubleshooting:

Detailed troubleshooting guides for common and uncommon issues, including electrical diagnostics.

Electrical Diagnostics:

Component testing, fault code interpretation (if applicable), wiring harness checks.

Special Tools:

Identification and usage of specialized tools required for specific repair procedures.

Depth:

Comprehensive, covering everything from basic owner maintenance to complete workshop-level repairs and diagnostics.

📊 Manual Specifications

File Type:

Portable Document Format (PDF)

Searchability:

Likely text-searchable, allowing for quick access to specific topics.

Print Readability:

Designed for clear printing and on-screen viewing, with high-resolution diagrams.

Binding:

N/A (Digital PDF format)

Paper:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Family:

Harley-Davidson Twin Cam 88B

Engine Displacement:

1450cc (88 cubic inches)

Bore X Stroke:

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

Compression Ratio:

8.9:1

Cylinder Configuration:

45-degree V-Twin

Valvetrain:

Overhead valves (OHV), 2 valves per cylinder

Cooling System:

Air-cooled

Lubrication System:

Dry sump with oil tank

Horsepower:

Approx. 60-65 HP (manufacturer figures vary, dependent on tuning)

Torque:

Approx. 75-80 lb-ft @ 3500 RPM (manufacturer figures vary)

Fuel Delivery:

Electronic Fuel Injection (EFI) - Sequential Port Fuel Injection (SPFI)

Fuel Type:

Unleaded gasoline, minimum 87 octane (RON+MON)/2

Fuel Tank Capacity:

5.0 US gallons (18.9 L)

🔧 Transmission

Transmission Type:

5-speed manual

Primary Drive:

Duplex chain, 1.375 in width

Final Drive:

Belt drive, 1.125 in width

Clutch Type:

Wet, multi-plate

Gear Ratios:

1st: 9.315, 2nd: 6.410, 3rd: 4.777, 4th: 3.871, 5th: 3.150

Transmission Fluid Type:

Harley-Davidson Formula + (or equivalent transmission/primary lubricant)

Transmission Fluid Capacity:

Approx. 2.8 US quarts (2.65 L)

📐 Dimensions

Overall Length:

Approx. 93.7 inches (2380 mm)

Overall Width:

Approx. 36.2 inches (920 mm)

Overall Height:

Approx. 49.4 inches (1255 mm)

Wheelbase:

Approx. 64.5 inches (1638 mm)

Ground Clearance:

Approx. 4.8 inches (122 mm)

Dry Weight:

Approx. 640 lbs (290 kg)

Gross Vehicle Weight Rating:

Approx. 1000 lbs (454 kg)

Front Tire Size:

MT90B16 (130/90-16)

Rear Tire Size:

130/90B16

Wheel Type:

Cast aluminum with spokes (typically)

Wheelbase Type:

Standard

🛡️ Safety Features

Safety Certification:

DOT, EPA, CARB compliant (as applicable for its release year)

Braking System:

Dual disc front brakes, single disc rear brake

Brake Calipers:

Typically 4-piston front, 2-piston rear

Suspension Front:

Harley-Davidson Springer front fork (leading link design)

Suspension Rear:

Concealed horizontal coil-over shock absorbers (Softail design)

Lighting System:

Halogen headlamp, LED tail lamp, incandescent turn signals.

Engine Guard:

Optional accessory, but common

Mirrors:

Handlebar-mounted rear-view mirrors

💡 Technology Features

Audio System:

Stock models typically did not feature integrated infotainment systems. Aftermarket audio installations are common.

ABS:

Anti-lock Braking System (ABS) was not standard on this model in 2004. It may have been an optional factory fitment or an aftermarket addition.

Diagnostic Ports:

EFI models utilize diagnostic connectors for engine management system access.

Dashboard Features:

Analog speedometer, tachometer (optional), fuel gauge, indicator lights for turn signals, oil pressure, neutral, high beam, etc.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 12 months, whichever comes first. (Refer to manual for exact conditions).

Primary Chain Tension Check:

Every 5,000 miles (8,000 km).

Spark Plug Replacement:

Every 10,000 - 15,000 miles (16,000 - 24,000 km), depending on type and condition.

Belt Drive Inspection:

Inspect for wear and tension at every service interval.

Brake Fluid Flush:

Every 2 years (DOT 4 fluid).

Engine Oil Type:

Harley-Davidson V-Twin Synthetic Motorcycle Oil (or equivalent API SG or higher, JASO FD/FE rated).

Engine Oil Capacity:

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

Brake Fluid Type:

DOT 4

Primary Lubricant:

Harley-Davidson Formula + (or equivalent transmission/primary lubricant).

Cam Chain Tensioners:

Early Twin Cam engines are known for wear in the cam chain tensioners, potentially leading to noise or failure. Upgraded hydraulic tensioners are a common modification.

Rocker Box Gaskets:

Occasional oil leaks from rocker box gaskets.

Regulator Rectifier:

Can be a failure point on some Harley models of this era, affecting the charging system.

Carburetor Vs Efi:

While this model is EFI, earlier EFI systems could be sensitive to fuel quality or require specific diagnostic tools for advanced troubleshooting.

Comprehensive Schedule:

The manual will detail specific mileage and time-based maintenance tasks for all components.

📚 Vehicle History

Heritage:

Harley-Davidson, founded in 1903, is an iconic American motorcycle manufacturer with a rich legacy of producing V-twin motorcycles known for their distinctive styling, sound, and build quality.

Softail Line:

The Softail platform, introduced in 1984, mimics the look of a hardtail frame with its concealed rear suspension, offering a classic rigid appearance with modern ride comfort. The Springer variant adds a historically significant front fork design.

Twin Cam 88B:

The Twin Cam 88B engine, introduced in 1999 for Softails, featured counterbalancers for smoother operation compared to earlier Big Twin engines.

Manufacturing Location:

United States (primarily York, Pennsylvania and Milwaukee, Wisconsin)

Production Years Fxstsi:

The FXSTSI Softail Springer was produced for a specific period, with the 2004 model being a key iteration. It evolved from earlier Springer models and was succeeded by later Softail designs.

🏆 Awards & Recognition

Model Recognition:

The FXSTSI Softail Springer is highly regarded by enthusiasts for its classic styling and the unique Springer front end, often featured in custom builds and motorcycle publications.