🏷️ Basic Information

Make:

Harley-Davidson

Model:

Softail FLSTFB

Year:

2016

Chassis Code:

FLSTFB

👋 Introduction

Model Segment:

Cruiser Motorcycle

Target Audience:

Riders seeking a classic cruiser experience with modern performance and styling, particularly those interested in customization and hands-on maintenance.

Key Competitors:

Indian Chief variants, other Harley-Davidson Softail models, select Japanese cruisers (e.g., Yamaha V-Star, Honda Shadow).

Distinctive Styling:

Blacked-out components, low-slung profile, classic Softail chassis design with hidden rear suspension, mini-ape handlebars, fat front tire (130/90B16).

Engine Variant:

Iconic Harley-Davidson V-Twin engine, known for its torque and distinctive sound.

📋 Manual Details

Systems Covered:

Engine, Fuel System, Ignition System, Electrical System, Drivetrain, Suspension, Brakes, Chassis, Frame, Bodywork, Maintenance, Troubleshooting, Diagnostics, Repair Procedures, Wiring Diagrams, Specifications

Estimated Page Count:

400+

Manual Type:

Service Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine disassembly, assembly, inspection, and repair of all internal components including pistons, cylinders, crankshaft, camshafts, valves, and timing. Covers specific Softail engine configurations.

Fuel System:

Comprehensive coverage of fuel injection systems (EFI), fuel pump, fuel injectors, fuel pressure regulators, throttle body, and evaporative emissions control systems. Includes diagnostic procedures and component testing.

Ignition System:

Detailed information on spark plugs, ignition coils, crank position sensors, ignition modules, and diagnostic troubleshooting for ignition-related issues.

Electrical System:

Extensive coverage of the motorcycle's electrical system including battery, charging system (alternator, regulator/rectifier), starting system, lighting (headlights, taillights, turn signals), instrumentation, switches, relays, and fuses. Includes detailed wiring diagrams and pin-out information.

Drivetrain Transmission:

Covers the 6-speed Cruise Drive transmission, clutch system, primary drive, and final drive belt. Includes procedures for clutch adjustment, transmission oil changes, clutch replacement, and gear inspection.

Suspension Steering:

Detailed procedures for front fork (telescopic, possibly with specific Softail features like hidden shocks), rear shock absorbers, wheel bearings, steering head bearings, and swingarm service. Includes fork oil type and capacity.

Brake System:

Comprehensive coverage of front and rear hydraulic disc brake systems, including brake calipers, master cylinders, brake lines, brake pads, brake fluid specifications, bleeding procedures, and ABS system diagnostics if applicable.

Chassis Frame:

Information on frame inspection, welding repairs (if applicable), and general chassis components.

Bodywork Fenders:

Procedures for removal, installation, and maintenance of fenders, fuel tank, side covers, and other body panels. Includes trim piece replacement.

Routine Maintenance:

Step-by-step instructions for scheduled maintenance tasks such as oil changes, filter replacements, spark plug changes, drive belt inspection and tensioning, brake fluid checks, and general lubrication. Includes recommended service intervals.

Troubleshooting Diagnostics:

Detailed diagnostic flowcharts and procedures for identifying and resolving common and uncommon issues across all vehicle systems. Includes symptom-based troubleshooting guides.

Component Repair Rebuild:

In-depth instructions for the repair and rebuilding of major motorcycle components, from engine internals to electrical modules and brake assemblies. Covers complete overhaul procedures.

Wiring Diagrams:

Full-color, highly detailed wiring diagrams for all electrical circuits, clearly illustrating component connections, wire colors, and routing. Essential for electrical diagnostics and repairs.

Special Tools:

Lists and illustrations of specialized tools required for specific maintenance and repair procedures, often unique to Harley-Davidson or specific model components.

Depth Of Information:

Comprehensive. This manual covers everything from basic user-level maintenance and adjustments to advanced engine teardowns, transmission overhauls, and complex electrical diagnostics, suitable for both experienced DIY mechanics and professional technicians.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content for quick access to information.

Image Resolution:

High-resolution images and graphics optimized for clear display of diagrams, illustrations, and photographs.

Binding Type:

Not Applicable (PDF format)

Paper Type:

Not Applicable (PDF format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, Twin Cam 103B™

Displacement:

1690 cc (103 cubic inches)

Bore X Stroke:

3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)

Compression Ratio:

9.0:1

Torque Peak:

Approx. 102 ft-lbs (138 Nm) @ 3500 rpm (Note: Specific dyno results may vary)

Horsepower Peak:

Not officially published by Harley-Davidson, but typically in the range of 75-85 HP (Est.)

Fuel Delivery:

Electronic Sequential Port Fuel Injection (ESPFI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Cooling Method:

Air-cooled

Oil Type:

Harley-Davidson V-Twin Motorcycle Oil (e.g., SYN3) or equivalent SAE 20W-50 API SG or higher.

🔧 Transmission

Transmission Type:

6-speed Cruise Drive®

Primary Drive:

Clutch, chain drive to transmission

Final Drive:

Belt, 32/66 ratio

Clutch Type:

Hydraulically actuated, 9-plate, wet clutch

Transmission Oil Type:

Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant (or equivalent SAE 80W-85 GL-4)

📐 Dimensions

Length:

95.7 in. (2430 mm)

Seat Height Laden:

26.1 in. (663 mm)

Ground Clearance:

4.4 in. (112 mm)

Dry Weight:

660 lbs (299 kg)

Weight In Running Order:

697 lbs (316 kg)

Gross Vehicle Weight Rating:

1010 lbs (458 kg)

Front Tire:

130/90B16 67H BW

Rear Tire:

150/80B16 77H BW

Wheel Type:

Black, 16-inch cast aluminum wheels

🛡️ Safety Features

Crash Test Ratings:

Motorcycles are not typically rated by government agencies like NHTSA or IIHS in the same way as automobiles. Safety is primarily dependent on rider skill and adherence to safe riding practices.

Brakes:

Hydraulic disc brakes front and rear. Optional ABS (Anti-lock Braking System) may be available depending on specific configuration or factory options.

Lighting:

Halogen headlight, LED tail light, amber LED front and rear turn signals.

Chassis Design:

Low center of gravity and stable chassis geometry contribute to rider confidence.

💡 Technology Features

Audio System:

Typically no integrated infotainment system on this model, focusing on the riding experience. Owners often add aftermarket audio or communication systems.

ABS:

Optional ABS (Anti-lock Braking System) was available, significantly enhancing braking safety.

Diagnostic Tools:

Professional diagnostic tools (e.g., Harley-Davidson's Digital Technician) are often required for advanced diagnostics and system resets. The manual will explain system functions and error codes.

🔧 Maintenance

First Service:

1,000 miles (1,600 km) or 6 months, whichever comes first (includes oil change, filter change, primary chain tensioner check, and general inspection).

Subsequent Service:

Every 5,000 miles (8,000 km) or 12 months (includes oil and filter changes, inspections). More frequent checks for items like brake pads, tires, and drive belt.

Engine Oil Capacity:

Approximately 3.7 quarts (3.5 liters) with filter change.

Transmission Oil Capacity:

Approximately 2.8 quarts (2.6 liters).

Primary Chaincase Oil Capacity:

Approximately 2.75 quarts (2.6 liters).

Brake Fluid:

DOT 4 (refer to manual for specific H-D recommendations)

Common Wear Items:

Clutch friction plates, brake pads, tires, drive belt, wheel bearings. Regular inspection and replacement are crucial.

Potential Electrical:

Some Twin Cam models may experience issues with charging systems (regulator/rectifier), starter solenoids, or wiring harness chafing if not properly maintained or rerouted. The manual will detail diagnostic procedures.

Engine Performance Related:

Carbon buildup in combustion chambers, potential oil leaks from gaskets or seals (especially with age and mileage). The manual provides guidance on maintenance to prevent these.

📚 Vehicle History

Brand Origin:

Founded in Milwaukee, Wisconsin, in 1903, Harley-Davidson is one of the oldest motorcycle manufacturers in the world, renowned for its iconic V-twin engines and cruiser-style motorcycles.

Softail Lineage:

The Softail platform, introduced in 1983, is characterized by its hidden rear suspension, designed to mimic the look of a hardtail frame while providing rider comfort. The FLSTFB ('Fat Boy Lo') variant represents a more stylized, often blacked-out, and lower-slung interpretation of the classic Softail cruiser.

Manufacturing Location:

Typically assembled in York, Pennsylvania, USA, and/or Kansas City, Missouri, USA.

🏆 Awards & Recognition

Model Acclaim:

Harley-Davidson Softail models, including variants like the FLSTFB, are consistently recognized for their iconic styling, comfortable ride, and strong V-twin performance, making them popular choices in the cruiser market. Specific awards are generally for the brand's overall offerings rather than individual model year trims.