🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLSTFSE Screamin' Eagle Fat Boy

Year:

2005

Chassis Code:

FLSTFSE

Engine Code:

Twin Cam 103, Screamin' Eagle EFI

👋 Introduction

Positioning:

The FLSTFSE Screamin' Eagle Fat Boy was a limited-edition, high-performance cruiser representing the pinnacle of factory customization for the 2005 model year. It targeted discerning Harley-Davidson enthusiasts seeking enhanced power and distinctive styling.

Competitors:

Primarily competed within the premium cruiser segment of the V-twin motorcycle market, including other Harley-Davidson limited editions and high-performance offerings from brands like Indian and select custom builders.

Features:

Exclusive Screamin' Eagle 103ci engine, custom paint schemes, upgraded suspension and braking components, chrome detailing, limited production numbers, factory-tuned performance.

Value:

Provides comprehensive factory-authorized information for the maintenance, repair, and customization of a rare and high-value limited-edition motorcycle, crucial for preserving its performance and collector status.

📋 Manual Details

Coverage:

Complete factory service and repair for the 2005 Harley-Davidson FLSTFSE Screamin' Eagle Fat Boy.

Page Count:

Estimated 500+ pages (typical for this era's factory service manuals)

Manual Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine:

Twin Cam 103 cubic inch (1690cc) V-Twin engine, fuel injection (EFI) system, ignition, lubrication, cooling, exhaust.

Transmission:

5-speed Cruise Drive transmission, clutch assembly, gear shift mechanism, primary drive.

Brakes:

Front and rear disc brake systems, hydraulic components, calipers, master cylinders, brake lines.

Electrical:

Battery, charging system (alternator, regulator), starting system (starter, solenoid), lighting system, ignition system, instrument cluster, wiring diagrams, electrical component troubleshooting.

Suspension:

Front fork (telescopic), rear shock absorbers, swingarm, wheel bearings.

Frame And Bodywork:

Frame structure, fuel tank, fenders, seat, handlebars, controls, body panels, mounts.

Wheels And Tires:

Wheel construction, spokes, tire specifications, wheel balancing, tire replacement.

Fuel System:

Fuel tank, fuel pump, fuel lines, fuel filter, EFI system components (throttle body, injectors, sensors).

Exhaust System:

Exhaust pipes, mufflers, catalytic converter (if applicable for the model year), exhaust mounting.

Steering:

Headstock bearings, steering head angle, steering stem.

Maintenance:

Routine maintenance tasks, oil changes, filter replacements, spark plug service, brake fluid flush, battery maintenance, drive belt inspection/adjustment.

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides, diagnostic trouble codes (DTCs) interpretation.

Repair:

Detailed step-by-step repair instructions for all major mechanical and electrical components, including engine disassembly/reassembly, transmission overhaul, suspension servicing, electrical component replacement.

Installation:

Instructions for installing official Harley-Davidson accessories and replacement parts, ensuring correct fitment and function.

Diagnostics:

Comprehensive diagnostic routines for engine management, electrical systems, and other vehicle functions.

Depth:

Complete factory-level coverage from basic scheduled maintenance to full engine and transmission rebuilds, including electrical system diagnostics and component-level repair.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution, searchable text and clear diagrams suitable for printing.

Binding Type:

N/A (Digital Download - PDF)

Paper Type:

N/A (Digital Download - PDF)

Searchability:

Fully searchable PDF content for quick access to specific information.

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 103™ V-Twin

Displacement:

103 cu. in. (1690 cc)

Bore X Stroke:

3.875 in. x 4.375 in. (98.4 mm x 111.1 mm) (Approximate for Screamin' Eagle 103)

Compression Ratio:

9.2:1 (Approximate for Screamin' Eagle 103)

Horsepower:

Estimated 70-75 HP (Stock Screamin' Eagle Tuning)

Torque:

Estimated 90-95 ft-lbs (Stock Screamin' Eagle Tuning)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI) with individual driver ignition coils

Fuel Type:

Unleaded Premium Gasoline (91 octane or higher recommended)

Ignition System:

High-performance, single-fire, non-serviceable ignition module

Oil Capacity:

3.5 US qt (3.3 L)

Oil Type:

Harley-Davidson Genuine V-Twin 20W-50, or equivalent API CD, CG-4 or CH-4 rated motor oil

Oil Filter:

Harley-Davidson Genuine Oil Filter P/N 63796-77A (or equivalent)

🔧 Transmission

Transmission Type:

5-speed Cruise Drive

Gear Ratios:

1st: 9.347, 2nd: 6.407, 3rd: 4.737, 4th: 3.822, 5th: 3.150 (Typical for 5-speed Cruise Drive)

Primary Drive:

Plated, heavy-duty, rubber-mounted, primary drive chain; 34/46 ratio

Final Drive:

Carbon Drivetech belt, 32/65 ratio

Clutch Type:

Hydraulic, multi-plate wet clutch

Transmission Fluid Type:

Harley-Davidson Genuine Formula + Transmission Lubricant (or equivalent SAE 85W-140)

Transmission Fluid Capacity:

30-32 US fl oz (0.9-0.95 L)

📐 Dimensions

Length:

92.7 in. (2354 mm)

Width:

38.5 in. (977.9 mm)

Height:

49.4 in. (1254.8 mm)

Wheelbase:

64.2 in. (1630.7 mm)

Ground Clearance:

5.1 in. (130 mm)

Dry Weight:

665 lbs (302 kg)

Gross Vehicle Weight Rating:

1000 lbs (454 kg)

Payload Capacity:

Approximately 335 lbs (152 kg)

Fuel Capacity:

5.0 US gal (18.9 L)

Front Tire:

MT90B16 72H

Rear Tire:

130/90B16 67H

Wheel Type:

Chrome aluminum alloy, spoke design

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycle safety is assessed differently than automobiles; focus is on rider aids and structural integrity).

Braking System:

Dual-piston caliper front brake, Single-piston caliper rear brake with integrated parking brake mechanism.

Lighting:

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

Frame Construction:

Mild steel, tubular frame with two front downtubes, two-piece see-thru drive side and right side covers, cast aluminum oil reservoir, section steel swingarm.

Handlebars:

Fat (25.4mm diameter) handlebars with internal wiring for clean appearance.

💡 Technology Features

Audio System:

No integrated audio system on this model; typically an aftermarket addition.

Rider Aids:

None in the modern sense (no ABS, traction control, or electronic rider modes). Focus is on mechanical function.

Instrument Cluster:

Analog speedometer, tachometer (optional on some variants), fuel gauge, oil pressure indicator, turn signal indicators, high beam indicator, neutral indicator, engine diagnostics indicator (ECI).

ECU:

Engine Control Unit (ECU) for managing fuel injection and ignition timing.

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months, whichever comes first. Includes engine oil and filter change, primary chain adjustment, inspection of all systems.

Subsequent Oil Change:

Every 5,000 miles (8,000 km) or 12 months, whichever comes first.

Belt Drive Inspection:

Inspect belt tension and condition every 10,000 miles (16,000 km).

Brake Fluid Flush:

Every 24 months or as recommended by fluid condition.

Engine Oil Viscosity:

20W-50

Transmission Fluid Viscosity:

SAE 85W-140

Primary Chain Case Oil:

Harley-Davidson Formula + Transmission Lubricant, or HD Syn3 (check manual for compatibility).

Brake Fluid Type:

DOT 4

Potential Issues:

Early EFI systems can be sensitive to fuel quality. Cam chain tensioner wear (though often addressed in later Twin Cam revisions, early models can be prone). Clutch slave cylinder leaks. Wiring harness issues if poorly modified or maintained.

Screamin Eagle Specifics:

Proper tuning and maintenance are critical for the Screamin' Eagle components to ensure longevity and optimal performance.

📚 Vehicle History

Heritage:

Harley-Davidson boasts a legacy of American motorcycle manufacturing dating back to 1903, known for its V-twin engines, distinctive styling, and rider community.

Fat Boy Lineage:

The Fat Boy line, introduced in 1990, is characterized by its retro styling, solid disc wheels, and distinctive chrome accents. The FLSTFSE represented a significant performance and aesthetic enhancement within this popular model family.

Screamin Eagle Program:

The Screamin' Eagle line signifies Harley-Davidson's in-house performance division, offering factory-built, high-displacement, and customized models. The FLSTFSE was a limited-production model for 2005.

Production Period:

2005 model year only for the FLSTFSE variant.

🏆 Awards & Recognition

Model Recognition:

The Screamin' Eagle models are generally highly regarded by enthusiasts for their factory-built performance and exclusivity. Specific awards for the FLSTFSE are less common as it was a limited production run, but it represented a significant benchmark in factory performance cruisers.