🏷️ Basic Information

Make:

Harley-Davidson

Model:

FXDF Dyna Fat Bob

Year:

2013

👋 Introduction

Positioning:

The Harley-Davidson Dyna Fat Bob is positioned as a performance-oriented cruiser with a distinct custom bobber aesthetic, appealing to riders seeking a raw, muscular riding experience and iconic Harley styling.

Competitors:

Competes with other large-displacement cruisers from brands like Indian Motorcycle, Victory Motorcycles (discontinued), and certain models from Japanese manufacturers like Kawasaki (Vulcan) and Honda (Shadow).

Features:

Fat 21x3.5 inch front tire, dual front disc brakes, 16-inch rear wheel, Twin Cam 103 engine, blacked-out components, aggressive styling, custom exhaust options.

📋 Manual Details

Systems Covered:

Engine, Transmission, Drivetrain, Fuel System, Ignition System, Electrical System, Suspension, Brakes, Chassis, Bodywork, Controls, Maintenance, Troubleshooting, Diagnostics

Wiring Diagrams:

Comprehensive color-coded electrical schematics for all systems, aiding in troubleshooting and repair of electrical faults.

Pages:

Extensive (specific count not provided, but typical workshop manuals are 500+ pages)

Type:

Complete Workshop Service Repair Manual

Manual Scope:

Covers all aspects of service, repair, maintenance, and diagnostics for the specified model and year.

Language:

English

Format:

Downloadable (likely PDF)

📖 Manual Coverage

Engine:

Twin Cam 103™ V-Twin, disassembly, assembly, inspection, and repair of all engine components including cylinders, pistons, crankshaft, camshafts, valves, and lubrication system.

Transmission:

6-speed Cruise Drive transmission, removal, installation, inspection, and repair of gears, bearings, shift mechanism, and clutch components.

Drivetrain:

Primary drive, belt drive, clutch operation, final belt drive system maintenance and adjustment.

Fuel System:

Electronic Sequential Port Fuel Injection (ESPFI), throttle body, fuel pump, injectors, pressure regulator, and diagnostic procedures.

Ignition System:

Ignition module, spark plugs, ignition coils, and troubleshooting of ignition faults.

Electrical System:

Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), lighting, instrumentation, and accessory circuits with wiring diagrams.

Suspension:

Front fork (telescopic) disassembly, assembly, fluid replacement, and rear shock absorber maintenance and adjustment.

Brakes:

Front and rear brake systems, hydraulic lines, calipers, master cylinders, brake pads, rotors, and bleeding procedures.

Chassis:

Frame inspection, steering head bearing adjustment, and wheel bearing maintenance.

Bodywork:

Fenders, fuel tank, seat, handlebars, and trim component removal and installation.

Controls:

Throttle cables, clutch cable, brake levers, shifter linkage, and control lever adjustments.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication, brake fluid replacement, tire pressure checks, belt tension checks.

Repair:

Complete disassembly and reassembly procedures for all major components, including engine rebuilds, transmission overhauls, and electrical system repairs.

Troubleshooting:

Step-by-step diagnostic guides for common and uncommon issues, fault code lookup, and resolution strategies.

Installation:

Procedures for installing genuine Harley-Davidson parts and accessories.

Diagnostics:

Detailed diagnostic trees, symptom-based troubleshooting, use of Harley-Davidson diagnostic tools (e.g., Digital Technician), and interpretation of diagnostic trouble codes (DTCs).

Wheel Assembly And Alignment:

Procedures for wheel removal, installation, tire mounting, balancing, and spoke tension adjustment (if applicable to wheel type).

Depth:

Comprehensive from basic maintenance to full engine and transmission rebuilds, including detailed torque specifications, clearances, and diagnostic procedures.

Torque Specifications:

Precise torque values for all fasteners, ensuring correct assembly and preventing component damage.

Clearances And Tolerances:

Specifications for piston-to-cylinder wall clearance, ring end gap, valve lash (if applicable to engine design), bearing clearances, and more.

📊 Manual Specifications

Format:

Digital Download (PDF recommended for compatibility and searchability)

Quality:

High resolution, suitable for printing individual pages or sections.

Binding:

N/A (Downloadable format)

Paper:

N/A (Downloadable format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 103 V-Twin

Displacement:

1690 cc (103 cubic inches)

Bore X Stroke:

3.875 in. x 4.38 in. (98.4 mm x 111.1 mm)

Compression Ratio:

9.0:1

Valve Train:

Pushrod actuated, overhead valves with two valves per cylinder

Cooling System:

Air-cooled

Engine Oil Type Specification:

Meets Harley-Davidson Engine Oil Specification: H-D 360 SAE 20W-50, or Harley-Davidson Genuine V-Twin Synthetic SAE 20W-50.

Torque:

Approximately 98 ft-lbs @ 3,500 RPM (manufacturer data may vary)

Horsepower:

Not officially published by Harley-Davidson, typically estimated around 70-80 HP at the crankshaft.

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Unleaded gasoline, minimum 91 octane

Fuel Capacity:

5.0 gal (18.9 L)

🔧 Transmission

Transmission Type:

6-speed Cruise Drive

Optional Transmission:

N/A (standard for the FXDF model)

Clutch Type:

Hydraulically actuated, multi-plate wet clutch

Final Drive:

Pre-lubricated, reinforced drive belt; 32/66 ratio

📐 Dimensions

Length:

93.1 in (2365 mm)

Width:

37.6 in (955 mm) (Handlebar width)

Height:

47.8 in (1214 mm) (Seat height, unladen)

Wheelbase:

63.7 in (1618 mm)

Dry Weight:

687 lbs (311 kg)

Gross Vehicle Weight Rating:

1181 lbs (536 kg)

Payload Capacity:

494 lbs (224 kg)

🛡️ Safety Features

Safety Features:

While not subjected to formal crash ratings like cars, the FXDF features robust braking systems and a stable chassis designed for confident handling. ABS was an optional feature for 2013 models.

Active Safety:

Optional Anti-lock Braking System (ABS), dual front disc brakes for enhanced stopping power, responsive suspension.

Passive Safety:

Strong steel frame, rider footboards and grips for secure positioning, integrated lighting.

💡 Technology Features

Infotainment System:

The 2013 FXDF did not typically feature integrated infotainment systems like modern touring bikes. Audio systems or communication devices were usually aftermarket additions.

Driver Assistance:

Optional ABS was the primary electronic rider aid. Cruise control was not standard on this model.

Connectivity:

No built-in smartphone integration or connectivity features. Accessory connectivity options may be available.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 12 months, whichever comes first. Refer to the specific manual for detailed procedures and oil specifications.

Primary Chain Tension:

Check and adjust every 10,000 miles (16,000 km).

Spark Plug Replacement:

Typically recommended every 10,000-20,000 miles (16,000-32,000 km), depending on usage and spark plug type.

Engine Oil:

Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent meeting Harley-Davidson specification).

Primary Chain Case Oil:

Harley-Davidson Genuine Primary Chain Case Oil or Harley-Davidson Syn3 Full Synthetic Transmission, Primary Drive, and Engine Oil.

Transmission Fluid:

Harley-Davidson Genuine Formula + Transmission, Primary Drive, and Engine Oil (or equivalent meeting Harley-Davidson specification).

Brake Fluid:

DOT 4

Fork Oil:

Refer to manual for specific type and viscosity (e.g., Harley-Davidson Spectro Big Twin Fork Oil).

Common Issues:

Some owners report potential issues with clutch slave cylinder leaks, charging system components (stator/regulator), and occasional oil leaks from the primary or transmission seals. Proper maintenance as outlined in the manual is key to mitigating these.

Engine Oil Capacity:

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

Primary Chain Case Capacity:

Approximately 1.0 US quart (0.95 L).

Transmission Capacity:

Approximately 2.8 US pints (1.3 L).

📚 Vehicle History

Heritage:

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

Evolution:

The Dyna platform was introduced in 1991, evolving over the years with various engine and styling updates. The Fat Bob, introduced in 2008, became a popular iteration of the Dyna line, characterized by its fat front tire and aggressive, stripped-down aesthetic.

Production Period:

The FXDF Dyna Fat Bob was produced from 2008 to 2017. The 2013 model year falls within this significant production run.

🏆 Awards & Recognition

Recognitions:

The Dyna platform and the Fat Bob model have consistently received positive reviews from motorcycle publications and riders for their performance, styling, and the quintessential Harley-Davidson experience.