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Harley Davidson FLSTF Fat Boy Softail 2012 Service Repair Manual
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🏷️ Basic Information Identification Make: Harley-Davidson Model: FLSTF Fat Boy Softail Year: 2012 Vehicle Type: Motorcycle Platform: Softail Product Name: Harley Davidson FLSTF Fat Boy Softail 2012 Service Repair Manual...
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🏷️ Basic Information
Identification
Make:
Harley-Davidson
Model:
FLSTF Fat Boy Softail
Year:
2012
Vehicle Type:
Motorcycle
Platform:
Softail
Product Name:
Harley Davidson FLSTF Fat Boy Softail 2012 Service Repair Manual
Codes
Vin Decoder Note:
Specific VIN range coverage may vary, consult manual for details.
👋 Introduction
Market Position
Brand Positioning:
Harley-Davidson is a premium lifestyle brand known for its cruiser motorcycles and heritage.
Model Positioning:
The FLSTF Fat Boy Softail is a flagship cruiser model, renowned for its distinctive styling and comfortable ride.
Competitive Analysis
Competitors:
Indian Motorcycles Chief, Victory Cross Roads, some Japanese cruisers (e.g., Yamaha Stryker, Honda Fury)
Key Differentiators:
Iconic 'Fat Boy' styling, large displacement V-twin engine, Softail's hidden rear suspension, extensive customization options.
Key Features
Styling Signature:
Fat front tire, large chrome headlight, teardrop fuel tank, wide handlebars.
Powertrain Feature:
Torquey Twin Cam 103B V-twin engine.
Chassis Feature:
Softail frame with concealed rear shock absorbers for a hardtail look.
📋 Manual Details
Coverage Areas
Primary Coverage:
Repair and overhaul of Harley-Davidson FLSTF Fat Boy Softail 2012
Secondary Coverage:
Routine maintenance, troubleshooting, diagnostics, component replacement
Page Count
Estimated Page Count:
Approximately 500-700 pages (typical for comprehensive service manuals)
Manual Type
Manual Type:
Service Manual / Workshop Repair Manual
Language
Language:
English
Format
Format:
PDF
📖 Manual Coverage
Systems Covered
Powertrain:
Engine (Twin Cam 103B), Transmission (6-speed Cruise Drive), Clutch, Final Drive
Chassis:
Frame, Swingarm, Suspension (Front and Rear), Wheels, Tires, Brakes (Front and Rear), Steering
Electrical System:
Ignition, Starting System, Charging System, Lighting, Instruments, Gauges, Switches, Wiring Diagrams, Security System
Fuel System:
Fuel Injection (Electronic Sequential Port Fuel Injection - ESPFI), Fuel Pump, Fuel Tank, Lines
Exhaust System:
Exhaust Pipes, Mufflers, Catalytic Converter (if applicable)
Bodywork And Trim:
Fenders, Fuel Tank, Seat, Handlebars, Controls, Fairings (if applicable), Covers
Procedures Included
Preventive Maintenance:
Oil changes, filter replacements, lubrication, inspections, tire pressure checks, brake pad inspections
Troubleshooting:
Diagnostic charts, symptom analysis, common problem resolution
Repair And Overhaul:
Engine rebuild, transmission overhaul, brake caliper service, suspension component replacement, electrical component repair
Component Removal And Installation:
Step-by-step instructions for removing and installing all major components
Torque Specifications:
Detailed torque values for all fasteners and critical components
Special Tools:
Identification and usage of specialized tools required for specific procedures
Technical Depth
Depth:
Comprehensive, suitable for professional technicians and experienced DIY mechanics
Diagnostic Capabilities:
Includes diagnostic procedures, fault code interpretation (if applicable to model year), and troubleshooting flowcharts
Rebuild Procedures:
Detailed instructions for complete engine and transmission rebuilds
📊 Manual Specifications
File Format
File Type:
PDF (Portable Document Format)
Searchable Text:
Likely (typical for professionally produced PDF manuals)
Print Quality
Image Resolution:
High resolution for clear diagrams and illustrations
Diagram Clarity:
Clear and detailed technical illustrations, schematics, and diagrams
Binding Type
Binding:
N/A (Digital PDF)
Paper Type
Paper Type:
N/A (Digital PDF)
⚙️ Engine Specifications
Primary Engine
Engine Family:
Twin Cam
Engine Code:
Twin Cam 103B
Configuration:
45-degree V-twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in x 4.38 in (98.4 mm x 111.3 mm)
Cooling System:
Air-cooled
Valvetrain:
Overhead valve (OHV), 2 valves per cylinder
Compression Ratio:
9.2:1 (approximate, check manual for specific variation)
Performance
Horsepower:
Approx. 75-80 HP (at crank, estimate, manual will have specifics)
Torque:
Approx. 95-100 lb-ft (at crank, estimate, manual will have specifics)
Fuel System
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON + MON) / 87 octane (PON)
Fuel Capacity:
5.0 US gallons (18.9 L)
🔧 Transmission
Standard
Transmission Type:
6-speed Cruise Drive
Gear Ratios:
Specific ratios available in manual, typically close-ratio for highway cruising.
Clutch Type:
Cable-actuated, wet, multi-plate
Final Drive:
Belt drive
Features
Overdrive Gears:
5th and 6th gears are typically overdrive for reduced engine RPM at highway speeds.
Transmission Fluid Spec:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent SYN3 (check manual for specific grade and capacity)
📐 Dimensions
Exterior
Length:
Approx. 97.1 in (2466 mm)
Width:
Approx. 37.4 in (950 mm)
Height:
Approx. 47.5 in (1207 mm)
Wheelbase:
Approx. 64.7 in (1643 mm)
Ground Clearance:
Approx. 4.3 in (110 mm)
Seat Height:
Approx. 27.5 in (699 mm) (unladen)
Weights
Dry Weight:
Approx. 702 lbs (318.5 kg)
Gross Vehicle Weight Rating:
Approx. 1200 lbs (544 kg)
Payload Capacity:
Approx. 498 lbs (226 kg)
🛡️ Safety Features
Ratings
Safety Ratings Note:
Motorcycle safety ratings are not standardized like automobiles; focus is on design integrity and braking performance.
Active Features
Braking System:
Dual-action, four-piston front calipers; two-piston rear caliper. Hydraulic disc brakes front and rear.
Optional ABS:
Anti-lock Braking System (ABS) was often an optional feature; verify if included on specific model.
Lighting:
Halogen headlamp, LED taillight, turn signals.
Passive Features
Frame Construction:
Steel, rigid frame, patented Softail suspension.
Security System:
Factory installed H-D Smart Security System with siren and transponder (often standard or optional).
💡 Technology Features
Infotainment
Infotainment System:
Basic system on this model. Typically includes speedometer, tachometer, odometer, fuel gauge, and indicator lights. Some models may have optional premium audio or cruise control.
Cruise Control:
Often optional or standard on higher trims; electronic throttle control for 2012 models.
Driver Assistance
Driver Assistance Features:
Limited on this model; primary focus is on mechanical and electrical systems. ABS if equipped.
Connectivity
Connectivity Options:
No integrated smartphone connectivity or Bluetooth as standard. Aftermarket solutions available.
🔧 Maintenance
Service Intervals
Initial Service:
500 miles (800 km) - typically includes oil change, primary chain adjustment, filter check, and general inspection.
Regular Service:
Every 5,000 miles (8,000 km) or annually, whichever comes first (includes oil change, inspection of various components).
Major Service Intervals:
Refer to manual for specific intervals for spark plugs, air filter, drive belt inspection/tensioning, brake fluid flush, fork oil change, etc.
Fluid Specifications
Engine Oil Type:
Harley-Davidson SYN3 (Fully Synthetic Motorcycle Oil) or equivalent SAE 20W-50 motorcycle oil. Check manual for specific H-D recommendations.
Engine Oil Capacity:
Approx. 4.0 US quarts (3.8 L) with filter change (check manual for exact capacity).
Primary Chaincase Lubricant:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent SAE 85W-140 gear oil.
Primary Chaincase Capacity:
Approx. 2.8 US quarts (2.6 L) (check manual for exact capacity).
Transmission Fluid Type:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant or equivalent SAE 85W-140 gear oil.
Transmission Fluid Capacity:
Approx. 1.0 US quart (0.95 L) (check manual for exact capacity).
Brake Fluid Type:
DOT 4 (check manual for specific type and requirements)
Fork Oil Type:
Refer to manual for specific viscosity grade (e.g., Harley-Davidson Screamin' Eagle Fork Oil)
Known Issues
Common Wear Items:
Clutch plates, brake pads, tires, drive belt, wheel bearings.
Potential Engine Issues:
While Twin Cam is robust, potential issues might include cam chain tensioner wear (especially on earlier models), oil leaks, or fuel injector issues. Manual will guide diagnosis.
Electrical System Considerations:
Wiring harness integrity, battery condition, charging system output are critical.
Suspension Wear:
Fork seals and rear shock absorbers can wear over time, affecting ride quality.
Fuel System Maintenance:
Regular use of quality fuel and occasional fuel system cleaner is recommended.
📚 Vehicle History
Brand Heritage
Brand Foundation:
Founded in 1903, Harley-Davidson is one of the oldest motorcycle manufacturers in the world.
Legacy:
Renowned for its V-twin engines, custom culture, and distinctive sound.
Model Evolution
Softail Introduction:
The Softail chassis concept, featuring concealed rear suspension, was introduced in 1983.
Fat Boy Introduction:
The Fat Boy model was first introduced in 1990, quickly becoming an iconic and best-selling Harley-Davidson model.
Twin Cam Introduction:
The Twin Cam engine platform was introduced in 1999, replacing the Evolution engine in most models.
2012 Updates:
The 2012 model year saw the FLSTF equipped with the Twin Cam 103B engine as standard across the range, offering increased power and torque.
Production
Manufacturing Location:
Primary assembly typically in York, Pennsylvania, USA and Milwaukee, Wisconsin, USA.
🏆 Awards & Recognition
Recognitions
Model Recognition:
The Fat Boy has consistently been a highly popular and recognized model within the motorcycle industry and pop culture.
Brand Recognition:
Harley-Davidson is a globally recognized brand synonymous with freedom, the open road, and American heritage.
Ratings
Owner Satisfaction:
Generally high owner satisfaction due to iconic status and customization potential, though maintenance costs can be a factor.