Model Years Covered:
2006, 2007
Engine Family:
Twin Cam 96
Engine Code:
N/A (Specific engine variants covered in manual)
Chassis Codes:
FLST (Heritage Softail), FLSTC (Heritage Softail Classic), FLSTF (Fat Boy), FLSTN (Softail Deluxe), FXST (Standard Softail), FXSTB (Night Train), FXSTC (Custom Softail)
Category:
Cruiser Motorcycle
Target Audience:
Harley-Davidson Softail owners, independent mechanics, service technicians
Competitors Segment:
Cruiser motorcycles from brands like Indian Motorcycle, Victory Motorcycles (discontinued), Honda (Shadow series), Yamaha (V-Star series), Kawasaki (Vulcan series), Suzuki (Boulevard series).
Platform:
Iconic Softail chassis design, known for its hidden rear suspension for a hardtail look.
Engine Philosophy:
Harley-Davidson's V-Twin 'rumble' and torque delivery, refined for the Twin Cam era.
Utility:
Essential for maintaining, repairing, and troubleshooting the 2006-2007 Softail models.
Value Proposition:
Provides in-depth technical information to save on costly dealership service fees and empower owners with self-sufficiency.
Primary Coverage:
All Softail Models 2006-2007
Engine Coverage:
Twin Cam 96 V-Twin Engine
Transmission Coverage:
6-Speed Cruise Drive Transmission
Estimated Page Count:
Approximately 800-1000 pages (typical for this era of Harley manual)
Type:
Workshop Repair Service Manual
Powertrain:
Engine (Twin Cam 96), Fuel System (EFI), Ignition System, Exhaust System, Transmission (Cruise Drive 6-Speed), Clutch, Drive Belt
Chassis And Suspension:
Frame, Front Suspension (Forks), Rear Suspension (Shocks), Steering, Wheels, Tires, Brakes (Front and Rear)
Electrical System:
Battery, Charging System (Alternator, Regulator), Starting System (Starter), Lighting (Headlight, Taillight, Signals), Instruments, Gauges, Wiring Diagrams, ECU/ECM
Bodywork And Trim:
Body Panels, Fenders, Fuel Tank, Seat, Handlebars, Controls, Mirrors, Footpegs/Floorboards, Luggage Components
Maintenance:
Scheduled Maintenance, Oil Changes, Filter Replacements, Lubrication, Tire Pressure Checks, Brake Pad Inspection, Belt Tension Adjustment
Troubleshooting:
Diagnostic Procedures, Fault Code Interpretation, Common Problems and Solutions, Engine Performance Issues, Electrical Gremlins
Repair And Rebuild:
Engine Overhaul, Transmission Rebuild, Fork Seal Replacement, Brake Caliper Overhaul, Wiring Harness Repair, Component Replacement
Technical Specifications:
Torque Specifications, Clearances, Fluid Capacities, Electrical Resistances, Dimensional Data
Depth:
Comprehensive. Covers from basic routine maintenance and diagnostics to full engine and transmission rebuilds. Includes detailed electrical schematics.
Engine Type:
Air-cooled, 45-degree V-twin
Engine Displacement:
96 cubic inches (1584 cc)
Bore X Stroke:
3.75 in. x 4.38 in. (95.25 mm x 111.25 mm)
Horsepower:
Approximately 65-70 HP (Estimate, varies by model and tuning)
Torque:
Approximately 85-95 ft-lbs @ 3000 RPM (Estimate, varies by model and tuning)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane
Ignition:
High-performance, two spark plugs per cylinder, crankshaft position sensor, coil-over-plug ignition
Type:
6-Speed Cruise Drive
Gear Ratios:
1st: 9.312, 2nd: 6.438, 3rd: 4.795, 4th: 3.817, 5th: 3.245, 6th: 2.790
Clutch:
Hydraulic, multi-plate wet clutch
Primary Drive:
Triplex chain, 34/46 ratio
Final Drive:
Belt drive, 32/66 ratio
Transmission Fluid:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant (or equivalent)
Length:
Varies by model (e.g., FLSTC approx. 93.3 in.)
Seat Height:
Varies by model (e.g., FLSTC approx. 25.6 in. unladen)
Ground Clearance:
Varies by model (e.g., FLSTC approx. 4.8 in.)
Dry Weight:
Varies by model (e.g., FLSTC approx. 676 lbs)
Gross Vehicle Weight Rating:
Varies by model (e.g., FLSTC approx. 1050 lbs)
Fuel Capacity:
Varies by model (e.g., FLSTC approx. 4.0 gallons)
Crash Test Ratings:
Not applicable for motorcycles in the same way as cars; focus is on rider safety features and handling.
Braking System:
Hydraulic disc brakes, front and rear. Optional ABS available on some models.
Suspension Tuning:
Designed for stable handling and rider control.
Lighting:
Halogen headlight, LED taillight and brake light, amber turn signals.
Chassis Stability:
Steel frame construction providing rigidity and predictable handling.
Audio System:
Optional factory-installed radio/audio systems on some models, often with AM/FM and CB/Intercom capabilities (depending on specific model and options).
Instrumentation:
Analog speedometer, tachometer, fuel gauge, voltage meter, oil pressure light, and other indicator lamps. Often includes trip meter.
ABS:
Anti-lock Braking System (ABS) was an optional feature on many Softail models during these years.
Diagnostics:
On-board diagnostics (OBD-II compliant on some systems) accessible via diagnostic ports, though full access usually requires proprietary Harley-Davidson tools or advanced aftermarket scanners. Manual provides diagnostic flowcharts.
First Service:
1,000 miles (1,600 km) or 6 months, whichever comes first.
Subsequent Service:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Engine Oil:
Harley-Davidson SYN3 (Synthetic) SAE 20W50 or equivalent V-Twin specific synthetic oil.
Engine Oil Capacity:
3.5 US quarts (3.3 liters) with filter change.
Transmission Fluid:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant or SAE 85W-140 gear oil.
Transmission Fluid Capacity:
28 US fluid ounces (0.83 liters).
Primary Chaincase Fluid:
Harley-Davidson Formula+ Transmission & Primary Chaincase Lubricant or SAE 20W-50 engine oil.
Primary Chaincase Fluid Capacity:
24 US fluid ounces (0.71 liters).
Common Wear Items:
Clutch plates, drive belt wear, wheel bearings, fork seals.
Engine Related:
Potential for cam chain tensioner wear (especially earlier Twin Cams, though less critical on Twin Cam 96); occasional stator or regulator issues.
Electrical Related:
Wiring harness chafing in specific areas; headlight and accessory wiring connector issues.
Founding:
Founded in 1903 in Milwaukee, Wisconsin, USA.
Iconic Status:
Harley-Davidson is synonymous with American motorcycle culture and freedom.
Softail Origin:
The Softail concept, featuring a hidden rear suspension, was introduced in 1984, designed to emulate the look of a rigid 'hardtail' frame while providing modern rider comfort.
Twin Cam Introduction:
The Twin Cam engine platform was introduced in 1999, replacing the Evolution engine, offering increased displacement, improved torque, and a more refined experience.
Manufacturing Location:
Primarily USA (Various Harley-Davidson plants).
Model Significance 2006 2007:
These years represent a mature iteration of the Twin Cam 96 Softail platform, offering a blend of classic styling and modern technology available at the time.
Brand Accolades:
Harley-Davidson consistently ranks high in customer satisfaction surveys for cruiser motorcycles and is a perennial winner of brand loyalty awards.
Motorcycle Reviews:
Softail models of this era are generally praised for their classic styling, comfortable ride, and powerful engine characteristics, though often noted for their weight and less nimble handling compared to sportier bikes.
