Market Segment:
Cruiser motorcycle, specifically Harley-Davidson's Softail line, known for its classic styling and V-twin engine.
Competitors 2006:
Other Harley-Davidson models, Indian Motorcycles, select models from Japanese manufacturers (e.g., Yamaha Road Star, Honda Shadow) and European manufacturers.
Softail Platform Features:
Rigid appearance with hidden rear suspension, characteristic V-twin engine, classic styling cues, diverse model range within the Softail family.
Engine Systems:
Fuel system, ignition system, lubrication system, cooling system (if applicable), exhaust system, internal engine components (cylinder head, pistons, crankshaft, camshafts, valves), engine tuning and diagnostics
Transmission Drivetrain:
Clutch, primary drive, transmission gears and shafts, final drive belt, shifter mechanism, lubrication
Electrical System:
Battery, charging system (stator, regulator/rectifier), starting system (starter motor, solenoid), ignition system, lighting (headlight, taillight, turn signals), instrumentation, wiring diagrams, fuses, relays, diagnostic connectors (e.g., HD-LAN)
Chassis Suspension Brakes:
Frame, front suspension (forks, steering head bearings), rear suspension (shock absorbers, swingarm), wheel bearings, brake system (master cylinders, calipers, rotors, lines, pads, bleeding procedures), anti-lock braking system (ABS) diagnostics and service
Bodywork And Trim:
Body panels, fenders, fuel tank, seat, handlebars, controls, mirrors, exhaust system components, accessory installation
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacement, spark plug replacement, brake fluid flush, clutch adjustment, belt tension check, battery maintenance, tire pressure checks
Repair Procedures:
Engine overhaul, transmission rebuild, clutch replacement, fork seal replacement, brake caliper overhaul, electrical component diagnosis and replacement, body panel repair and replacement
Troubleshooting Diagnostics:
Step-by-step diagnostic charts for common and uncommon issues, error code interpretation, wiring diagram analysis
Special Tools And Techniques:
Required specialty tools for specific procedures, torque specifications for all fasteners, critical assembly sequences
Technical Depth Level:
Comprehensive, covering from basic user maintenance to full engine and transmission overhauls, including electrical diagnostics and advanced troubleshooting.
File Format Details:
PDF (Portable Document Format), allowing for digital viewing, searching, and selective printing.
Print Quality Attributes:
High resolution, suitable for printing individual pages or the entire manual. Includes clear diagrams and schematics.
Binding Type For Printed Version:
Not applicable for PDF download; printable format allows for custom binding (e.g., spiral, three-ring).
Paper Type For Printed Version:
Not applicable for PDF download; suggests standard printer paper.
Engine Family:
Harley-Davidson Twin Cam 88B / 96 (depending on specific Softail variant and emissions compliance for the year)
Engine Configuration:
Air-cooled, 45-degree V-twin
Bore X Stroke:
For Twin Cam 88B: 3.75 in. x 4.00 in. (95.25 mm x 101.6 mm)
Displacement:
For Twin Cam 88B: 88 cubic inches (1450 cc)
Compression Ratio:
Typically 8.3:1 to 9.1:1 depending on specific model and tuning
Horsepower Rating:
Approx. 65-70 HP (varies by model and exhaust)
Torque Rating:
Approx. 80-85 ft-lbs @ 3500 RPM (varies by model)
Fuel Delivery System:
Fuel Injection (EFI) - Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (R+M/2)
Ignition Type:
Electronic Ignition (Spark Ignition)
Oil Type Engine:
Harley-Davidson Synchronized Formula SAE 20W50 or equivalent V-twin specific motorcycle oil
Oil Capacity Engine:
Approx. 4 quarts (3.8 Liters) with filter change
Transmission Type:
5-speed constant mesh manual transmission
Optional Transmission:
Not applicable for 2006 Softail models; all equipped with 5-speed manual.
Primary Drive Type:
Duplex chain primary drive with wet, multi-plate clutch
Final Drive Type:
Belt drive, 32mm wide, 140-tooth belt
Transmission Oil Type:
Harley-Davidson Transmission Lubricant SAE 80W-90 or equivalent gear oil
Transmission Oil Capacity:
Approx. 24 US fl oz (0.71 Liters)
Overall Length:
Varies by specific Softail model (e.g., FXST, FXSTB, FXSTC), generally around 93 inches (2362 mm)
Wheelbase:
Varies by model, approx. 64.5-65.5 inches (1638-1664 mm)
Dry Weight:
Varies by model, typically 650-700 lbs (295-318 kg)
Gross Vehicle Weight Rating:
Varies by model, typically around 1000-1100 lbs (454-499 kg)
Fuel Tank Capacity:
Varies by model, typically 4.0-5.0 US gallons (15.1-18.9 Liters)
Infotainment Features:
Base models typically feature analog instrumentation. Higher-end or optioned models might include integrated audio systems (radio/CD player) and cruise control.
Driver Assistance Systems:
Optional ABS (Anti-lock Braking System) available on select models.
Connectivity Options:
Limited connectivity in the modern sense; typically relies on dealer diagnostic tools and the HD-LAN communication network for electronic diagnostics.
Diagnostic Capabilities:
On-board diagnostics via the VCI (Vehicle Communication Interface) and diagnostic software; manual provides guidance on interpreting codes and performing diagnostic tests.
Initial Service Interval:
First service typically recommended at 1,000 miles (1600 km) or 6 months, whichever comes first.
Engine Oil Change Interval:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first, or as per specific oil manufacturer recommendations.
Transmission Oil Change Interval:
Every 10,000 miles (16,000 km) or 24 months, whichever comes first.
Primary Chain Case Oil Change Interval:
Every 5,000 miles (8,000 km) or 12 months, whichever comes first.
Spark Plug Replacement Interval:
Typically at 10,000-15,000 miles (16,000-24,000 km), refer to manual for specific plug type and gap.
Brake Fluid Type:
DOT 4, non-silicone based hydraulic fluid
Clutch Fluid Type:
DOT 4, non-silicone based hydraulic fluid (for hydraulic clutch models)
Fork Oil Type:
Harley-Davidson Type E or equivalent SAE 10W fork oil
Common Wear Items:
Clutch plates, brake pads, drive belt, wheel bearings, steering head bearings, battery.
Potential Reliability Concerns:
Some owners report issues with charging systems (regulator/rectifier), oil leaks from engine/transmission seals, and premature wear of certain suspension components. The manual will guide diagnostics for these.
Typical Tune Up Components:
Spark plugs, air filter, fuel filter (if applicable/accessible), engine oil and filter, primary and transmission oil.
Harley Davidson Legacy:
Established in 1903, Harley-Davidson is an iconic American motorcycle manufacturer known for its V-twin engines, custom styling, and strong brand identity.
Softail Line Introduction:
The Softail platform was introduced in 1983, featuring a concealed rear suspension to mimic the hardtail look of classic motorcycles while providing modern ride comfort.
2006 Softail Updates:
The 2006 model year saw continued refinement of the Twin Cam engine, chassis updates, and the introduction of various Softail sub-models like the FXST, FXSTI (with ABS), FXSTB ('Night Train'), FXSTS ('Springer'), and FXSTC ('Custom').
Manufacturing Location:
Primarily assembled in York, Pennsylvania, USA, with components sourced globally.
