Segment:
Cruiser Motorcycle
Target Audience:
Harley-Davidson FLSTC owners, independent motorcycle mechanics, enthusiast DIYers.
Competitors:
Indian Chief Vintage, Victory Kingpin, other retro-styled cruisers from Japanese manufacturers.
Model Identity:
Iconic retro styling with modern V-twin performance and touring capability.
Manual Value Proposition:
Provides comprehensive DIY repair and maintenance capabilities, saving on dealership service costs.
Systems Covered:
Engine, Transmission, Primary Drive, Electrical System, Fuel System, Ignition System, Cooling System, Brakes, Suspension, Frame, Wheels, Tires, Bodywork, Controls, Lighting, Emissions, Troubleshooting, Maintenance Schedules, Specifications
Page Count:
Approx. 800-1000 pages (typical for comprehensive Harley-Davidson service manuals)
Manual Type:
Factory Service Manual (FSM) / Workshop Manual
Format:
Digital (PDF, likely)
Engine Overhaul:
Complete disassembly, inspection, repair, and reassembly of the Twin Cam 103 engine.
Transmission Service:
Detailed procedures for servicing the Cruise Drive 6-speed transmission, including clutch and primary drive assembly.
Electrical Diagnostics:
Comprehensive wiring diagrams, component testing, and diagnostic procedures for the entire electrical system.
Fuel And Ignition:
Coverage of fuel injection system (EFI), throttle body, fuel pump, injectors, and ignition module.
Braking System:
Service and repair for front and rear disc brakes, including hydraulic system and components.
Suspension And Steering:
Front fork (telescopic) and rear shock absorber maintenance, adjustment, and repair. Steering head bearing service.
Frame And Bodywork:
Frame inspection, body panel removal and installation, fairings, fenders, and saddlebag servicing.
Wheels And Tires:
Wheel bearing replacement, tire mounting and balancing, spoke adjustment (if applicable).
Routine Maintenance:
Oil changes, filter replacements, spark plug service, belt inspections, lubrication points.
Troubleshooting Guides:
Step-by-step diagnostic procedures for common and uncommon issues.
Component Replacement:
Detailed instructions for replacing major and minor components across all systems.
Technical Specifications:
Torque specifications, clearances, fluid capacities, electrical resistance values.
Diagnostic Level:
Advanced diagnostics, including wiring schematics and troubleshooting flowcharts.
Rebuild Procedures:
Complete engine and transmission rebuild procedures.
Calibration Settings:
Details on calibrating electronic systems if applicable (e.g., throttle position sensor).
Engine Family:
Harley-Davidson Twin Cam 103
Engine Type:
Air-cooled, 45-degree V-twin
Displacement:
1690 cc (103 cubic inches)
Bore X Stroke:
3.875 in. x 4.375 in. (98.4 mm x 111.1 mm)
Horsepower:
Approx. 70-75 HP (at crankshaft, unconfirmed specific rating for 2012 FLSTC without manual reference)
Torque:
Approx. 95-100 lb-ft @ 3000 RPM (unconfirmed specific rating for 2012 FLSTC without manual reference)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Oil Capacity:
Approx. 4 US quarts (3.8 Liters) with filter change
Oil Type:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (or equivalent meeting HD-360 specification)
Transmission Type:
Cruise Drive 6-Speed
Primary Drive:
Duplex chain, hydraulic tensioner
Clutch Type:
Cable-actuated, wet, multi-plate
Gear Ratios:
Refer to manual for specific gear ratios (e.g., 1st: 9.312, 2nd: 6.420, 3rd: 4.783, 4th: 3.872, 5th: 3.307, 6th: 2.790)
Transmission Fluid Type:
Harley-Davidson Genuine Formula + Transmission & Primary Chaincase Lubricant (or equivalent meeting HD-82A specification)
Transmission Fluid Capacity:
Approx. 32 US fl oz (0.95 Liters)
Crash Test Ratings:
Not applicable (motorcycle)
Brakes:
Hydraulic front and rear disc brakes
Lighting:
Halogen headlamp, LED tail lamp, front and rear turn signals
Frame Construction:
Steel, under-seat, rigid, mild steel tubing
Audio System:
Optional Harley-Davidson Factory CD/MP3/AM/FM Audio System with handlebar-mounted controls.
Display:
Analog speedometer, tachometer, fuel gauge, voltage meter, oil pressure gauge, gear indicator.
ABS:
Optional Anti-lock Braking System (ABS) was available.
Cruise Control:
Standard electronic cruise control.
Initial Service:
1,000 miles (1,600 km) or 6 months
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months thereafter
Primary Chain Tensioner Inspection:
Inspect at 1,000 miles, then every 10,000 miles (16,000 km) or as per manual recommendations.
Spark Plug Replacement:
Refer to manual for specific mileage, often around 20,000 miles for iridium plugs.
Engine Oil Specification:
Harley-Davidson Genuine V-Twin 20W-50 Synthetic (HD-360)
Transmission Fluid Specification:
Harley-Davidson Formula + Transmission & Primary Chaincase Lubricant (HD-82A)
Brake Fluid Specification:
DOT 4
Cam Chain Tensioner Wear:
Early Twin Cam models experienced wear on the hydraulic cam chain tensioners. 2012 models typically have updated tensioners, but inspection is still recommended.
Primary Chain Adjustment:
Proper adjustment of the primary chain tensioner is critical for smooth operation and longevity.
Idle Control Issues:
Potential for rough idle or stalling due to throttle position sensor (TPS) or idle air control (IAC) issues, often addressable with diagnostic tools and manual procedures.
Brand Origin:
Founded in 1903 in Milwaukee, Wisconsin, USA.
Brand Specialty:
Long-distance cruisers, V-twin engines, iconic styling.
Heritage Softail Lineage:
The Heritage Softail line has roots tracing back to the early Shovelhead and Evolution Softail models, emphasizing classic styling cues.
Twin Cam Introduction:
The Twin Cam engine platform was introduced in 1999, evolving over the years to incorporate features like fuel injection and larger displacements.
Production Location:
United States (various Harley-Davidson manufacturing facilities)
Significant Changes For 2012:
Introduction of the Twin Cam 103 engine as standard for the FLSTC model, enhanced braking components, revised styling elements.