Target Audience:
Harley-Davidson FLSTF Fat Boy ST 2005 owners, independent repair shops, and motorcycle enthusiasts.
Value Proposition:
Provides the same authoritative information as the original factory manual, enabling comprehensive DIY maintenance and repair.
Completeness:
Complete official factory service repair manual, offering full coverage.
Searchability:
PDF format allows for easy keyword searching to quickly find specific information.
Printability:
Allows users to print specific sections or the entire manual for convenient workshop use.
Engine Coverage:
V-Twin, Twin Cam 88B engine
Transmission Coverage:
5-speed Cruise Drive Transmission
Chassis Suspension Coverage:
Front fork (telescopic), Rear shock absorbers (coil-over)
Electrical System Coverage:
Ignition system, charging system, starting system, lighting, instrumentation, wiring diagrams
Fuel System Coverage:
Carburetor (Keihin CV40), fuel tank, fuel lines, fuel pump (if applicable for model year)
Brake System Coverage:
Front and rear disc brakes, hydraulic system
Bodywork And Trim Coverage:
Fenders, fuel tank, seat, handlebars, controls, fenders, exhaust system
Estimated Page Count:
Hundreds of pages (specific number not provided in product description)
Manual Type:
Factory Service Repair Manual
All Major Systems:
Yes, comprehensive coverage of all major mechanical and electrical systems.
Maintenance Procedures:
Regular scheduled maintenance, fluid changes, filter replacements, lubrication.
Repair Procedures:
Detailed step-by-step repair instructions for all major components and systems.
Troubleshooting Guides:
Diagnostic charts and procedures for identifying and resolving common and uncommon issues.
Disassembly And Assembly:
Complete instructions for taking apart and putting back together engines, transmissions, and other assemblies.
Electrical Troubleshooting:
Detailed wiring diagrams, component testing procedures, and diagnostic flowcharts.
Depth Of Information:
Factory-level detail, suitable for professional mechanics and advanced DIY enthusiasts.
Diagnostic Capabilities:
In-depth diagnostics for engine performance, electrical faults, and mechanical issues.
Component Rebuilds:
Comprehensive guidance for rebuilding major components like the engine and transmission.
File Format:
PDF (Portable Document Format)
Print Quality:
High-resolution, designed for clear printing of all diagrams, text, and schematics.
Binding Type:
N/A (Digital Download - PDF)
Paper Type:
N/A (Digital Download - PDF)
Engine Type:
Air-cooled, Twin Cam 88B V-twin
Displacement:
1450 cc (88 cubic inches)
Bore X Stroke:
3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Valve Train:
Overhead valves (OHV), pushrod actuated, 2 valves per cylinder
Horsepower Estimate:
Approx. 65-70 HP (at crankshaft, estimated)
Torque Estimate:
Approx. 80-85 ft-lbs (at crankshaft, estimated)
Carburetor Type:
Keihin CV40 (Constant Velocity)
Fuel Delivery:
Gravity feed from fuel tank
Recommended Fuel:
Unleaded gasoline, minimum 91 octane (AKI)
Transmission Type:
5-speed Cruise Drive, constant mesh
Clutch Type:
Wet, multi-plate
Primary Drive:
Duplex chain, 34/46 tooth, 1.35:1 ratio
Final Drive:
Belt drive, 32/66 tooth, 2.06:1 ratio
Gear Ratios:
1st: 9.006, 2nd: 6.142, 3rd: 4.707, 4th: 3.723, 5th: 3.150 (approximate ratios)
Transmission Fluid Type:
Harley-Davidson transmission lubricant or equivalent API GL-4, SAE 75W-90
Transmission Fluid Capacity:
Approx. 24 US fl oz (710 ml)
Overall Length:
Approx. 92.5 inches (2350 mm)
Seat Height Unladen:
Approx. 26.4 inches (670 mm)
Ground Clearance:
Approx. 4.8 inches (122 mm)
Dry Weight:
Approx. 669 lbs (303 kg)
Gross Vehicle Weight Rating:
Approx. 1080 lbs (490 kg)
Fuel Capacity:
5.0 US gallons (18.9 L)
Oil Capacity:
Approx. 4 US quarts (3.8 L) with filter change
Safety Rating Standard:
Motorcycles are not typically rated by government agencies like NHTSA for crash safety in the same way cars are. Safety is primarily dependent on rider skill and adherence to safe riding practices.
Braking System:
Dual-piston caliper front, single-piston caliper rear, hydraulic disc brakes.
Lighting:
Halogen headlamp, LED tail lamp, turn signals.
Frame Construction:
Steel, cradle frame
Tire Construction:
Tubeless, bias-ply (typical for this era).
Infotainment System:
Not applicable for this model year; typically features analog gauges and basic controls.
Driver Assistance Features:
Not applicable; no electronic driver assistance systems are present.
Connectivity Features:
Not applicable; no Bluetooth or smartphone integration.
First Service Mileage:
Typically around 1,000 miles (1,600 km) for initial oil change, inspection, and adjustments.
Regular Oil Change Interval:
Every 5,000 miles (8,000 km) or annually, whichever comes first (engine oil).
Transmission Fluid Change Interval:
Every 10,000 miles (16,000 km) or biennially.
Primary Chain Tensioner Inspection:
Inspect at 1,000 miles, then every 10,000 miles (for the automatic tensioner, if equipped; manual adjustment may be required for earlier models or specific setups).
Engine Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 or equivalent API CI-4/SL, JASO MA certified motorcycle oil.
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Primary Oil Type:
Harley-Davidson Genuine Primary Chaincase Lubricant or equivalent API GL-5, SAE 85W-140
Primary Chain Tensioner:
The automatic primary chain tensioner on earlier Twin Cam models (pre-2007) was known to wear out, leading to noise and potential damage. Replacement with an upgraded hydraulic tensioner is a common modification.
Cam Chain Tensioner:
Similar to the primary tensioner, the cam chain tensioners (often plastic shoe type) can wear, causing rattling noises. Replacement with upgraded components is recommended.
Carburetor Tuning:
The Keihin CV40 carburetor can sometimes require fine-tuning for optimal performance, especially after modifications or at different altitudes.
Oil Leaks:
Common maintenance areas for potential oil leaks include pushrod tube seals, primary cover gasket, and engine crankcase seals.
Brand Origin:
Harley-Davidson Motor Company, founded in Milwaukee, Wisconsin in 1903.
Fat Boy Introduction:
The Fat Boy model was first introduced in 1990 and quickly became an icon for its distinctive styling and presence.
Twin Cam 88B Introduction:
The Twin Cam 88B engine, introduced in 1999, replaced the Evolution engine and featured a counterbalancer for smoother operation in rigid frames.
Manufacturing Location:
United States (various Harley-Davidson assembly plants)
