Target Audience:
Harley-Davidson Softail owners, independent repair shops, mechanics seeking detailed service information.
Manual Value Proposition:
Provides factory-level technical data and procedures, enabling cost-effective DIY repairs and maintenance for the 2006 Softail models.
Instant Download:
Immediate access to comprehensive service information without shipping delays.
Engine Service:
Complete engine overhaul, internal components, lubrication system, cooling system (air-cooled), fuel system, ignition system, exhaust system, engine management (ECU, sensors).
Transmission Service:
Primary drive, transmission case, gears, clutch assembly, shift mechanism, lubrication, repair procedures.
Chassis Service:
Frame, suspension (front forks, rear shock absorbers), steering system, wheels, tires, brakes (hydraulic front and rear), brake system bleeding, ABS (if equipped).
Electrical Service:
Wiring diagrams, lighting system, starting system, charging system (alternator, regulator), battery, ignition switch, security system, instrument cluster, diagnostics for electrical faults.
Body And Fittings:
Fenders, fuel tank, seat, handlebars, controls, fairings (if applicable), saddlebags (if equipped), trim components, body panel removal and installation.
Maintenance Procedures:
Routine maintenance checks, oil changes, filter replacements, spark plug service, chain adjustment (if applicable), brake fluid flush, tire pressure checks.
Troubleshooting Guides:
Systematic diagnostic procedures for common and uncommon problems, symptom-based troubleshooting charts.
Repair Procedures:
Detailed step-by-step instructions for component removal, repair, overhaul, and reassembly of all major vehicle systems.
Diagnostic Procedures:
On-board diagnostics (OBD) information, sensor testing, fault code interpretation, use of diagnostic tools.
Depth Of Coverage:
Comprehensive; covers everything from basic maintenance to complete engine and transmission rebuilds, including electrical diagnostics and chassis component overhauls.
Engine Family:
Evolution (Evo) Big Twin
Engine Displacement:
88 cubic inches (1450cc)
Engine Configuration:
Air-cooled, 45-degree V-twin
Bore X Stroke:
3.75 in x 4.00 in (95.25 mm x 101.6 mm)
Valvetrain:
Overhead valves (OHV), 2 valves per cylinder, pushrod actuated.
Horsepower Estimate:
Approximately 65-70 hp (varies by model and tuning)
Torque Estimate:
Approximately 75-80 ft-lbs (varies by model and tuning)
Fuel Delivery:
Fuel Injection (Electronic Sequential Port Fuel Injection - ESPFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (AKI)
Oil Capacity:
Approximately 4 quarts (3.8 liters) with filter change
Oil Type:
Harley-Davidson SYN3 Full Synthetic SAE 20W50 or equivalent API CI-4 rated motorcycle oil.
Transmission Type:
5-speed constant mesh, sequential manual transmission
Primary Drive:
Duplex chain, 34/46 tooth, wet clutch
Final Drive:
Belt drive, 32/66 tooth
Clutch Type:
Wet, multi-plate, diaphragm spring
Transmission Fluid Type:
Harley-Davidson transmission lubricant or equivalent SAE 80W-90 GL-4
Overall Length:
Approx. 92.5 inches (2350 mm) - varies by specific Softail model
Wheelbase:
Approx. 64.0 inches (1626 mm) - varies by specific Softail model
Dry Weight:
Approx. 630-680 lbs (286-308 kg) - varies by specific Softail model
Fuel Capacity:
Approx. 5.0 US gallons (18.9 liters)
Crash Test Ratings:
N/A for motorcycles; focus on component safety and system integrity.
Braking System:
Hydraulic disc brakes front and rear. Optional ABS available on some models.
Lighting:
Halogen headlight, LED taillight and brake light, amber turn signals.
Frame Construction:
Steel, double-cradle frame.
Security:
Factory-installed H-D Smart Security System with siren and hands-free fob (optional or standard depending on trim).
Audio System:
Optional accessory for some models; typically AM/FM radio with CD player.
Display:
Analog speedometer and tachometer, LCD odometer, trip meter, and diagnostic indicators.
Cruise Control:
Available as an option on some Softail models for 2006.
Diagnostic Ports:
Diagnostic connector for electronic troubleshooting tools.
Initial Service:
First service at 1,000 miles (1,600 km) - includes engine oil and filter change, primary chaincase lubrication, chassis lubrication, inspection of all fasteners, brake system check, and throttle/clutch cable adjustments.
Subsequent Service:
Every 5,000 miles (8,000 km) or annually, whichever comes first. Includes engine oil and filter change, primary chaincase lubrication, inspection of drive belt, brake system check, and chassis lubrication.
Spark Plug Replacement:
Every 10,000 miles (16,000 km).
Brake Fluid Flush:
Every 2 years or 24,000 miles (38,000 km).
Engine Oil Viscosity:
SAE 20W50
Primary Chaincase Oil:
Harley-Davidson Primary Chaincase Lubricant or SAE 85W-140 gear oil.
Transmission Oil:
SAE 80W-90 GL-4 gear oil.
Brake Fluid:
DOT 4 hydraulic brake fluid.
Common Wear Items:
Clutch plates, drive belt, brake pads, fork seals, wheel bearings.
Electrical Gremlins:
Can occur due to vibration and connector issues; proper maintenance of wiring harness and grounds is crucial.
Cam Chain Tensioners:
Older Evo engines may have hydraulic tensioners that can wear; later models (including some 2006) might have improved designs or require upgrades.
Carburetor Tuning:
CV carburetor may require periodic adjustment for optimal performance, especially with modifications.
Brand Foundation:
Founded in 1903, Harley-Davidson is an iconic American motorcycle manufacturer renowned for its cruiser and touring motorcycles.
Softail Lineage:
The Softail platform, introduced in 1983, is characterized by its concealed rear suspension, mimicking the look of a hardtail frame while providing modern ride comfort. The 2006 models represent a refinement of this classic design.
Manufacturing Location:
York, Pennsylvania, USA and Milwaukee, Wisconsin, USA.
Brand Acclaim:
Harley-Davidson is consistently recognized for its iconic design, rider experience, and strong brand loyalty.
Owner Satisfaction:
Generally high owner satisfaction, with a focus on the lifestyle and customization aspects.
Regulatory Compliance:
Meets all applicable EPA and DOT safety and emissions standards for the model year.
