🏷️ Basic Information

Make:

Harley-Davidson

Model:

FLSTF Fat Boy

Year:

2009

Sub Model:

All Models

Chassis Code:

FLSTF

👋 Introduction

Positioning:

The Harley-Davidson FLSTF Fat Boy is a flagship cruiser known for its distinctive styling, comfortable ride, and powerful V-twin engine. It appeals to riders seeking a classic American motorcycle experience with modern reliability.

Competitors 2009:

Competes with other large-displacement cruiser motorcycles from brands like Indian Motorcycles, Victory Motorcycles, and to some extent, Japanese manufacturers offering V-twin cruisers.

Model Features:

Iconic styling, robust V-twin engine, comfortable ergonomics, often features chrome accents, fat tires, and a relaxed riding posture.

📋 Manual Details

Primary Coverage:

Service, Maintenance, Troubleshooting, Repair

Estimated Page Count:

Approx. 600-800 pages (typical for full workshop manuals)

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Systems:

Engine assembly, disassembly, tuning, fuel injection (EFI), ignition system, lubrication system, cooling system (if applicable, though typically air-cooled for this model), exhaust system.

Drivetrain Systems:

Clutch operation and adjustment, transmission (gearbox) disassembly and assembly, primary drive, final drive (belt drive system), troubleshooting of drive train issues.

Chassis Systems:

Frame inspection and repair, front suspension (forks), rear suspension (shocks), steering system, wheel bearings, swingarm.

Braking Systems:

Front and rear brake systems, hydraulic lines, calipers, master cylinders, brake fluid specifications, bleeding procedures, ABS components (if equipped).

Electrical Systems:

Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting system (headlight, taillight, turn signals), ignition system wiring, fuel injection wiring, diagnostic codes (DTCs), instrument cluster, horn, accessory wiring.

Fuel System:

Fuel tank, fuel pump, fuel lines, fuel filter, throttle body, fuel injectors, pressure regulator.

Bodywork And Trim:

Fender removal and installation, fuel tank removal, seat mounting, fairings (if applicable), handlebars, mirrors, cosmetic components.

Maintenance Procedures:

Regular scheduled maintenance, oil changes, filter replacements (oil, air, fuel), spark plug replacement, brake pad inspection and replacement, tire pressure checks, chain/belt adjustment, clutch and throttle cable adjustments.

Troubleshooting Guides:

Systematic diagnostic procedures for common and uncommon problems, identification of symptoms, diagnosis of electrical faults, mechanical component failures, performance issues.

Repair Procedures:

Detailed step-by-step instructions for component overhaul, replacement, and adjustment. Includes engine rebuilds, transmission repairs, suspension overhauls, brake system repairs, electrical component replacement.

Diagnostic Procedures:

Information on using diagnostic tools, interpreting diagnostic trouble codes (DTCs), performing system checks, and identifying root causes of malfunctions.

Depth Of Information:

Comprehensive, suitable for professional technicians and experienced DIY mechanics. Covers everything from routine maintenance to complete engine and transmission rebuilds, including electrical system diagnostics and troubleshooting.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content for quick information retrieval.

Quality:

High-resolution scans suitable for printing.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 96 V-Twin

Displacement:

96 cubic inches (1584cc)

Bore X Stroke:

3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)

Compression Ratio:

9.0:1

Torque Ft Lbs:

Approx. 92.6 ft-lbs @ 3500 RPM (96 cubic inch)

Horsepower Hp:

Not officially quoted by Harley-Davidson for this model year, but generally in the 70-80 HP range.

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, 91 octane or higher recommended

Ignition System:

High-intensity discharge, integrated ignition, controller and coil

🔧 Transmission

Transmission Type:

6-speed Cruise Drive

Primary Drive:

Patented, primary chain drive with compensator technology

Final Drive:

Belt Drive, 32mm wide

Clutch:

Hydraulically actuated, 9-plate, wet clutch

📐 Dimensions

Length Overall:

94.5 in. (2400 mm)

Width Handlebar:

37.0 in. (940 mm)

Height Overall:

52.9 in. (1345 mm)

Wheelbase:

64.5 in. (1638 mm)

Ground Clearance:

4.7 in. (120 mm)

Seat Height Laden:

25.2 in. (640 mm)

Fuel Capacity:

5.0 gal. (18.9 L)

Dry Weight:

675 lbs. (306 kg)

Gross Vehicle Weight Rating:

1050 lbs. (476 kg)

🛡️ Safety Features

Safety Ratings:

Motorcycles are not typically subjected to formal crash testing like automobiles. Safety relies on rider skill and adherence to maintenance.

Active Safety Features:

Optional Anti-lock Braking System (ABS) available on some configurations.

Passive Safety Features:

Robust frame construction, integrated lighting, reliable braking system.

💡 Technology Features

Infotainment System:

Typically features a robust analog speedometer and integrated indicator lights. Limited to basic functions, prioritizing the riding experience.

Assistance Features:

Optional ABS on some models. Primarily relies on rider input.

Connectivity Features:

No integrated smartphone connectivity or advanced electronic rider aids beyond ABS. Focus is on mechanical and analog feedback.

🔧 Maintenance

Initial Service:

First service typically at 1,000 miles (1600 km).

Regular Maintenance:

Intervals of 5,000 miles (8,000 km) for oil changes and inspections, with more detailed checks at higher mileage intervals (e.g., 10,000, 20,000 miles).

Engine Oil Type:

Harley-Davidson SYN3 (Synthetic) SAE 20W-50 or equivalent API SG-certified motorcycle oil. Refer to manual for specific API rating and viscosity grades.

Engine Oil Capacity:

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

Primary Chain Case Oil Type:

Harley-Davidson Formula+ (or equivalent primary lubricant, e.g., SAE 50) for primary chain case.

Primary Chain Case Oil Capacity:

Approx. 1 US quart (0.95 L).

Transmission Oil Type:

Harley-Davidson SYN3 (Synthetic) SAE 20W-50 or specific Harley-Davidson transmission lubricant.

Transmission Oil Capacity:

Approx. 24 US fl oz. (0.7 L).

Brake Fluid Type:

DOT 4 approved brake fluid (check manual for specific Harley-Davidson part number or equivalent).

Fork Oil Type:

Check manual for specific fork oil viscosity (e.g., Harley-Davidson Type E or equivalent).

Common Wear Items:

Clutch plates, brake pads, tires, wheel bearings, spark plugs, drive belt (due to mileage and stress).

Electrical Concerns:

Potential issues with the charging system (stator/regulator) on higher mileage units, although Twin Cam generally robust. Intermittent electrical connections.

Engine Performance Quirks:

Twin Cam 96 engines are known for their torque, but some riders may experience minor oil carry-over or valve train noise that is normal for the design. Proper maintenance is key.

Transmission Noise:

Some owners report normal mechanical noise from the transmission and primary drive, which is characteristic of Harley-Davidson motorcycles. The manual will address abnormal noises.

📚 Vehicle History

Heritage:

Harley-Davidson boasts a rich history dating back to 1903, synonymous with American motorcycle culture, freedom, and iconic styling.

Fat Boy Origin:

The Fat Boy model was introduced in 1990 and quickly became an icon for its unique 'fat' tire look and custom styling, inspired by pre-war motorcycles. The FLSTF designation signifies its Softail chassis with Fat Boy styling.

Manufacturing Location:

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

🏆 Awards & Recognition

Model Recognition:

The Fat Boy is consistently recognized as a style icon in the motorcycle world and a consistent seller for Harley-Davidson.

Customer Satisfaction:

Generally high customer satisfaction for its performance, styling, and riding experience, though satisfaction with specific reliability aspects can vary.

Emissions Certification:

Complies with EPA and California Air Resources Board (CARB) emissions standards for the model year.