Segment:
Cruiser Motorcycle
Target Audience:
Harley-Davidson FLSTF Fat Boy owners, independent mechanics, service technicians
Comparison Point:
The Fat Boy is a flagship cruiser known for its distinctive styling and V-twin engine, competing with other large-displacement American cruisers of its era.
Model Distinction:
Iconic 'Fat Boy' styling with wide front forks, large front headlight, and fat tires.
Manual Value Proposition:
Provides essential technical knowledge for maintaining and repairing the FLSTF Fat Boy, enabling owners to perform tasks themselves or understand mechanic's work.
Powertrain:
Engine, Transmission, Clutch, Drive Train
Chassis:
Frame, Suspension (Front & Rear), Steering, Brakes (Front & Rear), Wheels, Tires
Electrical:
Ignition System, Lighting, Gauges, Battery, Starter, Charging System, Wiring Diagrams
Fuel System:
Carburetor (Keihin CV), Fuel Tank, Fuel Lines, Fuel Pump (if applicable)
Exhaust:
Exhaust System Components, Mufflers
Maintenance:
Scheduled Maintenance, Oil Changes, Filter Replacement, Lubrication Points, Brake Pad Replacement, Tire Rotation/Replacement
Diagnostics:
Troubleshooting Guides, Fault Code Identification (if applicable), Symptom-Based Diagnosis
Repair:
Engine Overhaul, Transmission Rebuild, Brake System Service, Suspension Component Replacement, Electrical Component Repair
Assembly Disassembly:
Step-by-step instructions for disassembly and reassembly of all major components
Depth:
Comprehensive; covers routine maintenance to full engine and transmission rebuilds, including detailed specifications and tolerances.
Engine Family:
Harley-Davidson Evolution (Evo) Big Twin
Engine Type:
Air-cooled, 45-degree V-twin
Displacement:
1337 cc (81.8 cubic inches)
Bore X Stroke:
3.4375 in x 4.25 in (87.3 mm x 108 mm)
Compression Ratio:
8.5:1 (typical)
Valve Train:
Overhead valves (OHV), pushrod actuated, 2 valves per cylinder
Horsepower:
Approximately 65-70 HP (estimated at crank)
Torque:
Approximately 75-80 lb-ft (estimated at crank)
Ignition System:
Electronic Ignition
Exhaust Configuration:
2 into 1 or 2 into 2
Carburetor Type:
Keihin CV (Constant Velocity) 40mm
Fuel Requirement:
Unleaded gasoline, 91 octane (AKI) or higher recommended
Fuel Tank Capacity:
4.0 US gallons (15.1 L)
Transmission Type:
5-speed constant mesh, manual
Clutch Type:
Wet, multi-plate, manual activation
Drive Type:
Belt Drive (primary), Chain Drive (final)
Transmission Fluid Type:
Harley-Davidson Formula+ (or equivalent SAE 50 primary lubricant)
Crash Safety:
Motorcycles of this era do not have standardized crash test ratings like automobiles.
Braking System:
Dual-piston caliper front brake, Single-piston caliper rear brake
Lighting:
Halogen headlamp, incandescent tail and marker lights
Frame Construction:
Steel tube frame
Oil Change Interval:
Every 2,500 miles (4,000 km) or 6 months
Primary Chain Tensioner Check:
Check at every 5,000 miles (8,000 km)
Brake Fluid Flush:
Recommended every 2 years
Spark Plug Replacement:
Typically every 10,000 - 15,000 miles (16,000 - 24,000 km)
Engine Oil Viscosity:
20W-50 (Harley-Davidson recommends their own brand or equivalent)
Engine Oil Capacity:
Approximately 4 US quarts (3.8 L) with filter
Primary Chain Lubricant Type:
Harley-Davidson Formula+ or equivalent SAE 50 motorcycle lubricant
Primary Chain Lubricant Capacity:
Approximately 1 US quart (0.95 L)
Brake Fluid Type:
DOT 4 (typically, consult manual for exact specification)
Fork Oil Type:
Harley-Davidson Suspension Oil (e.g., 15W) or equivalent
Fork Oil Capacity:
Approximately 8.0 US fl oz (237 ml) per fork leg
Cam Chain Tensioner:
The original stock cam chain tensioners (shoes) can wear prematurely, leading to noise and potential damage. Upgrade to hydraulic tensioners is a common modification.
Carburetor Tuning:
Keihin CV carburetor can sometimes require fine-tuning for optimal performance, especially after modifications or altitude changes.
Oil Leaks:
Common for older V-twins; may require seal or gasket replacement.
Electrical Connections:
Corrosion or loose connections can lead to intermittent electrical issues.
Manufacturer Origin:
United States
Brand Philosophy:
Harley-Davidson is renowned for its long-standing tradition of producing iconic, American-made V-twin motorcycles with a focus on rider experience and lifestyle.
Fat Boy Introduction:
The Fat Boy model was first introduced in 1990 and quickly became a cultural icon.
2000 Model Year Significance:
Represents the evolution of the Softail platform with the reliable Evolution engine and continued iconic styling.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA
