Segment:
Cruiser Motorcycle
Target Audience:
Harley-Davidson FLSTF Fat Boy owners seeking to perform maintenance, repairs, or diagnostics.
Key Selling Points:
Official factory documentation ensures accuracy and completeness, vital for maintaining the integrity and value of the motorcycle.
Authenticity:
This is the official factory service manual, providing authorized procedures and specifications.
Completeness:
Offers comprehensive coverage for nearly all aspects of the motorcycle's operation and maintenance.
Engine:
Detailed troubleshooting, repair, and overhaul procedures for the Twin Cam 96 engine.
Transmission:
Service and repair for the 6-speed Cruise Drive transmission.
Fuel System:
EFI system diagnostics, component testing, and fuel system maintenance.
Electrical System:
Wiring diagrams, ignition system, lighting, charging system, and starter diagnostics.
Brakes:
Front and rear brake system service, including hydraulic components and ABS (if equipped).
Suspension:
Front fork and rear shock absorber service and adjustment.
Chassis:
Frame, swingarm, and wheel bearing service.
Bodywork:
Fender, fuel tank, and accessory installation and service.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, and lubrication points.
Troubleshooting:
Systematic diagnostic procedures for common and uncommon issues.
Disassembly Reassembly:
Step-by-step instructions for component removal and installation.
Performance Tuning:
Guidance on adjustments and specifications for optimal performance.
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds.
Engine Type:
Harley-Davidson 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)
Cooling System:
Air-cooled
Valve Train:
Overhead valve, pushrod-activated, two valves per cylinder
Horsepower:
Approx. 77 hp @ 5000 rpm (typical for this engine, manual will have exact spec)
Torque:
Approx. 96 ft-lbs @ 3500 rpm (typical for this engine, manual will have exact spec)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (R+M)/2
Ignition System:
Solid-state, breakerless, with electronic spark timing
Transmission Type:
6-speed Cruise Drive
Gear Ratios:
1st: 9.315, 2nd: 6.455, 3rd: 4.772, 4th: 3.807, 5th: 3.167, 6th: 2.790 (typical, manual will confirm)
Clutch Type:
Multi-plate, wet, diaphragm spring
Primary Drive:
70/46 ratio, ribbed V-belt
Final Drive:
46/20 ratio, belt drive
Transmission Fluid:
Harley-Davidson Transmission Fluid P/N 99951-05 (or equivalent API GL-4, SAE 75W-90 synthetic gear lubricant)
Safety Ratings:
N/A (Motorcycles typically do not have standardized crash test ratings like cars; safety is addressed through design and rider skill.)
Brakes:
Hydraulic disc brakes front and rear.
Lighting:
Halogen headlamp, LED tail lamp, front and rear turn signals.
Frame Construction:
Steel frame providing structural integrity.
Infotainment System:
The 2009 FLSTF Fat Boy typically features a simpler, rider-focused design. For this model year, advanced infotainment systems are not standard. Audio systems were often aftermarket additions.
Driver Assistance Features:
No electronic driver assistance systems are standard on this model. Safety relies on mechanical systems and rider input.
Connectivity Features:
No integrated smartphone connectivity or Bluetooth as standard.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first (includes engine oil and filter change, primary chain adjustment, inspection of various components).
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months (includes engine oil and filter change, inspections).
Transmission Oil Change:
Every 10,000 miles (16,000 km) or 24 months.
Engine Oil:
Harley-Davidson 20W-50 SYN3 P/N 99952-001 (or equivalent API CI-4 rated SAE 20W-50 synthetic motorcycle oil).
Primary Chain Case Oil:
Harley-Davidson Primary Chain Lubricant P/N 99824-04 (or equivalent SAE 80W-90 hypoid gear lubricant).
Brake Fluid:
DOT 4 brake fluid.
Fork Oil:
Refer to manual for specific type and quantity, typically a mid-weight fork oil.
Common Wear Items:
Clutch plates, brake pads, tires, and suspension components are subject to normal wear and tear.
Potential Electrical Issues:
While generally reliable, some owners report occasional issues with starter solenoids or battery charging systems; the manual's diagnostic section is key.
Engine Performance Optimization:
The manual provides specifications for maintaining optimal engine performance and can guide owners in identifying potential tuning needs.
Brand Origin:
Founded in Milwaukee, Wisconsin, Harley-Davidson is an iconic American motorcycle manufacturer with a history dating back to 1903.
Fat Boy Introduction:
The Fat Boy model was first introduced in 1990, quickly becoming a distinctively styled cruiser known for its solid disc wheels and wide tires.
2009 Updates:
The 2009 model year saw the FLSTF Fat Boy adopt the Twin Cam 96 engine and 6-speed transmission as standard, along with styling refinements.
Production Location:
Harley-Davidson motorcycles are primarily manufactured in the United States.
