🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLSTF Fat Boy

Year:

2006

Motorcycle Type:

Cruiser

Vin Position 1 To 3:

1HD (Harley-Davidson)

Vin Position 10:

6 (2006 Model Year)

👋 Introduction

Positioning:

The 2006 Harley-Davidson FLSTF Fat Boy is positioned as a classic, iconic cruiser, known for its distinctive styling and powerful V-twin engine.

Competitors:

Competed with other large-displacement cruisers from brands like Indian Motorcycle, and potentially some American V-twin offerings from custom builders or other manufacturers.

Styling:

Distinctive 'Fat Spoke' wheels, wide front tire, teardrop fuel tank, wide handlebars, and chrome accents.

Engine Character:

Known for its torquey, air-cooled V-twin engine, providing a classic Harley-Davidson riding experience.

Usefulness:

Essential for owners and technicians to maintain, diagnose, and repair the motorcycle to factory specifications, ensuring longevity and optimal performance.

📋 Manual Details

Primary Coverage:

2006 Harley-Davidson FLSTF Fat Boy

Estimated Page Count:

Hundreds (specific number not provided, but implies comprehensive)

Type:

Factory Service Repair Manual

Language:

English

Format:

Printable (suggests digital format with print capability)

📖 Manual Coverage

Engine:

Engine assembly, disassembly, troubleshooting, diagnostics, tuning, specific components (e.g., carburetor, ignition, fuel delivery)

Transmission:

Transmission operation, disassembly, assembly, troubleshooting, fluid specifications

Drivetrain:

Primary drive, belt drive, clutch, final drive maintenance and repair

Electrical:

Wiring diagrams, lighting, ignition system, charging system, starting system, battery, instrumentation, troubleshooting electrical faults

Braking System:

Brake system components, service, bleeding procedures, fluid specifications

Suspension And Steering:

Front fork assembly, rear shock absorbers, steering head bearings, maintenance, and adjustment

Wheels And Tires:

Wheel removal, installation, tire servicing, balancing, specifications

Fuel System:

Fuel tank, fuel lines, fuel filter, carburetor service and adjustment

Exhaust System:

Exhaust components, removal, installation, maintenance

Frame And Body:

Frame components, body panel removal and installation, mounting hardware

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication, chain adjustment (if applicable), brake checks

Diagnostics:

Systematic troubleshooting guides, fault code interpretation, diagnostic procedures for various systems

Repair:

Step-by-step repair instructions for all major components and systems, including engine rebuilds and component replacement

Disassembly And Assembly:

Detailed instructions for taking apart and putting back together all motorcycle systems and components

Special Tools:

Identification and usage of specialized tools required for specific repairs and adjustments

Depth:

Comprehensive factory-level detail, suitable for professional technicians and experienced DIY mechanics

📊 Manual Specifications

Digital Format:

Likely PDF (implied by 'print it out')

Print Readability:

Designed for clear printing of individual pages or the entire manual

Physical Binding:

Not specified, but typically professional manuals are comb-bound or coil-bound for lay-flat usability

Physical Paper Quality:

Not specified, but high-quality paper stock is common for durability in a workshop environment

⚙️ Engine Specifications

Engine Family:

Twin Cam 88B

Engine Type:

Air-cooled, 45-degree V-twin

Displacement:

1449 cc (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:

Approx. 65-70 HP (claimed, manufacturer figures can vary)

Torque:

Approx. 84-86 ft-lbs @ 3200 RPM (claimed, manufacturer figures can vary)

Fuel Delivery:

Carburetor (likely Keihin CV) or Electronic Fuel Injection (EFI) depending on specific market/variant, but 2006 typically featured EFI.

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON+MON)/91 AKI

Ignition Type:

Electronic Ignition (likely single fire)

Oil Type:

Harley-Davidson 20W-50 SYN3 or equivalent motorcycle-specific synthetic oil

Oil Capacity:

3.0 US quarts (2.8 liters) with filter change

Cooling Method:

Air-cooled

🔧 Transmission

Type:

5-speed constant mesh

Availability:

Not applicable for this model year and trim.

Clutch:

Hydraulic clutch actuation

Primary Drive:

Duplex chain, 34/46 ratio

Final Drive:

Belt drive, 32/65 ratio

Transmission Oil Type:

Harley-Davidson Formula + Transmission Lubricant (or equivalent API GL-4, SAE 90)

Transmission Oil Capacity:

24 US fl oz (0.71 Liters)

📐 Dimensions

Length:

92.5 in (2350 mm)

Width:

35.2 in (895 mm)

Height:

48.7 in (1237 mm)

Wheelbase:

64.4 in (1636 mm)

Ground Clearance:

5.1 in (130 mm)

Dry Weight:

635 lbs (288 kg)

Wet Weight:

Approx. 670 lbs (304 kg) (Estimate, includes fluids)

Gross Vehicle Weight Rating Gvwr:

Not typically published for Harley-Davidson cruisers in the same way as cars, but rider and cargo capacity is implied.

Fuel Tank Capacity:

5.0 US gallons (18.9 Liters)

🛡️ Safety Features

Crash Safety Ratings:

Motorcycles are not rated by standard automotive crash test agencies like NHTSA or IIHS.

Braking:

Dual front disc brakes, single rear disc brake. ABS was not standard or widely available on this model.

Lighting:

Headlight, tail light, brake light, turn signals.

💡 Technology Features

Audio System:

Factory-installed audio systems were optional on many FLSTF models in 2006 and could include AM/FM radio and CD player, often integrated into the fairing or handlebar console.

Gauges:

Analog speedometer, tachometer, fuel gauge, oil pressure gauge, and indicator lights.

ABS Availability:

Anti-lock Braking System (ABS) was not a standard feature on the 2006 FLSTF Fat Boy, but may have been a dealer-installed option or available on specific sub-models.

Connectivity Features:

Basic, with analog and potentially optional audio connectivity.

🔧 Maintenance

Oil Change Interval:

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

Primary Chain Case Oil Change:

Every 10,000 miles (16,000 km) or 24 months (refer to manual).

Transmission Oil Change:

Every 10,000 miles (16,000 km) or 24 months (refer to manual).

Spark Plug Replacement:

Refer to manual; typically around 15,000-20,000 miles.

Belt Inspection And Tension:

Regular inspection and adjustment as per manual recommendations.

Brake Fluid Type:

DOT 4 brake fluid

Common Wear Items:

Clutch plates, wheel bearings, steering head bearings, brake pads, and tires due to typical cruiser riding style and weight.

Engine Considerations:

While the Twin Cam 88B is robust, oil leaks from the primary or transmission can occur with age. Cam chain tensioner wear is a known issue on earlier Twin Cam models, though the 88B design mitigated some of this.

Schedule Availability:

The provided manual contains detailed maintenance schedules.

📚 Vehicle History

Legacy:

Harley-Davidson, founded in 1903, has a long and storied history in American motorcycling, synonymous with V-twin engines and a distinct lifestyle.

Fat Boy Introduction:

The Fat Boy model line was introduced in 1990, becoming an instant icon for its unique styling cues.

Twin Cam Introduction:

The Twin Cam engine platform was introduced in 1999, offering improved performance and reliability over the Evolution engine.

Manufacturing Location:

Typically assembled in York, Pennsylvania, and Milwaukee, Wisconsin, USA.

Model Year Significance:

2006 represented a mature iteration of the Twin Cam 88B engine and the Fat Boy styling, building on years of refinement.

🏆 Awards & Recognition

Model Acclaim:

The Fat Boy has historically received widespread acclaim for its iconic styling and cultural impact, often featured in films and recognized as a symbol of American motorcycling.

Owner Satisfaction:

Generally high owner satisfaction for its class, particularly among riders who appreciate its classic aesthetic and comfortable cruiser riding position.

Emissions Compliance:

Compliant with US EPA emissions standards for its model year. Manual will detail any specific testing or adjustment procedures related to emissions.