Segment:
Cruiser Motorcycle
Target Audience:
Owners seeking to perform maintenance and repairs, independent repair shops, and enthusiasts.
Competitors:
Other Harley-Davidson models, custom choppers, and performance cruisers from brands like Indian, Victory (discontinued), and some Japanese manufacturers.
Model Identity:
The FXSTDI Deuce Softail is characterized by its distinctive 'Deuce' styling, including extended front forks, elongated wheelbase, and often a 200mm rear tire for a classic chopper-inspired look.
Manual Value Proposition:
Provides in-depth technical guidance for maintaining and repairing the FXSTDI Deuce Softail, empowering owners and technicians with accurate procedures and specifications.
Primary Coverage:
Service, Repair, Overhaul
Secondary Coverage:
Troubleshooting, Maintenance, Diagnostics
Estimated Page Count:
Extensive (typically 600-900 pages for comprehensive Harley-Davidson service manuals)
Type:
Workshop Service Repair Manual
Powertrain:
Engine, Transmission, Primary Drive, Clutch, Final Drive
Chassis:
Frame, Suspension (Front and Rear), Wheels, Tires, Brakes, Steering
Electrical:
Ignition System, Lighting, Instrumentation, Battery, Charging System, Starting System, Fuel Injection System (EFI), Anti-lock Braking System (ABS) if equipped
Bodywork:
Body Components, Fenders, Fuel Tank, Seat, Handlebars, Controls
Routine Maintenance:
Oil Changes, Filter Replacements, Lubrication, Spark Plug Service, Belt Inspection/Adjustment
Diagnostic Procedures:
Troubleshooting Charts, Symptom-Based Diagnosis, Diagnostic Trouble Codes (DTCs)
Repair And Overhaul:
Engine Rebuilds, Transmission Disassembly/Assembly, Brake Caliper Rebuilds, Suspension Component Replacement
Special Tools:
Identification and Usage of Specialized Harley-Davidson Tools
Depth:
Comprehensive: From basic inspections and adjustments to complete engine and transmission rebuilds, electrical system diagnostics, and frame component repairs.
Engine Family:
Harley-Davidson Twin Cam 88B
Engine Configuration:
Air-cooled, 45-degree V-twin
Displacement:
1450cc (88 cubic inches)
Bore X Stroke:
3.75 in x 4.00 in (95.25 mm x 101.6 mm)
Compression Ratio:
8.9:1 (typical for Twin Cam 88B)
Horsepower:
Approximately 65-70 HP (actual figures can vary based on tuning and exhaust)
Torque:
Approximately 86-90 lb-ft @ 3200 RPM (actual figures can vary)
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI)
Fuel Type:
Unleaded Gasoline, minimum 87 octane
Camshafts:
Hydraulic lifters, rocker arms
Cooling System:
Air-cooled
Oil System:
Dry sump lubrication system with oil tank separate from crankcase
Type:
5-speed Manual Constant Mesh
Gear Ratios:
Specific ratios detailed in manual, typically including: 1st: 9.342, 2nd: 6.454, 3rd: 4.783, 4th: 3.852, 5th: 3.058
Clutch Type:
Wet, multi-plate, diaphragm spring
Primary Drive:
Duplex chain, right-side drive
Final Drive:
Belt drive, 20mm or 25mm belt width depending on specific configuration
Transmission Oil:
Harley-Davidson Formula Plus or equivalent SAE 50 transmission lubricant. Capacity: Approx. 24 US fl oz (710 ml)
Primary Chain Case Oil:
Harley-Davidson Formula + or equivalent SAE 50 transmission lubricant. Capacity: Approx. 28 US fl oz (828 ml)
Length:
Approximately 94.6 inches (2403 mm)
Width Handlebar:
Approximately 35.1 inches (892 mm)
Height Seat:
Approximately 26.5 inches (673 mm) unladen
Ground Clearance:
Approximately 4.5 inches (114 mm)
Dry Weight:
Approximately 630 lbs (286 kg)
Gross Vehicle Weight Rating:
Approximately 1050 lbs (476 kg)
Payload Capacity:
Approximately 420 lbs (190 kg)
Front Tire:
Dunlop D402 MH90-21 54H
Rear Tire:
Dunlop D401 180/55B17 73V (typically for Deuce models with 200mm wide tire)
Safety Certification:
Meets all applicable federal motor vehicle safety standards for motorcycles.
Braking System:
Hydraulic disc brakes, dual front discs, single rear disc. ABS (Anti-lock Braking System) may be an optional feature on some models, requiring specific diagnostic and service procedures detailed in the manual.
Lighting:
Halogen headlight, LED tail light, amber front and rear turn signals.
Frame Construction:
Steel cradle frame with integrated fuel tank and seat mounting.
Instrumentation:
Analog speedometer, tachometer (often integrated into a handlebar-mounted cluster), fuel gauge, oil pressure gauge, indicator lights for turn signals, high beam, neutral, and engine diagnostics (ECM).
ABS:
Available as an option. If equipped, the manual provides specific procedures for bleeding and diagnosing the ABS system.
Diagnostic Ports:
Proprietary Harley-Davidson diagnostic connector (4-pin or 6-pin) for use with digital technician tools for engine diagnostics, data logging, and module programming.
First Service:
1000 miles (1600 km) or 6 months, whichever comes first. Includes engine oil and filter change, primary chaincase lubrication, checking/adjusting clutch and throttle cables, inspecting brake systems, and checking tire pressure.
Subsequent Service:
Every 5000 miles (8000 km) or 12 months. Includes engine oil and filter change, primary chaincase lubrication, spark plug replacement (every 10,000 miles), air filter inspection, belt inspection and tension check, brake system inspection, and lubrication of pivot points.
Engine Oil:
Harley-Davidson SYN3 Synthetic Motorcycle Oil SAE 20W-50, or a high-quality synthetic motorcycle oil meeting Harley-Davidson specifications (e.g., Screamin' Eagle SYN3). Capacity: Approx. 4 US quarts (3.8 liters) with filter change.
Brake Fluid:
DOT 4, low viscosity, compliant with Harley-Davidson specifications. For both front and rear brake systems.
Coolant:
N/A (Air-cooled engine)
Common Wear Items:
Clutch plates, primary chain, belt drive, brake pads and rotors, wheel bearings, fork seals.
Twin Cam 88B Considerations:
Early Twin Cam 88B engines (pre-2007) are known for potential issues with cam chain tensioners wearing out, leading to rattling noises and potential damage. Later models (like this 2006) may have improved tensioners or owners may opt for upgraded hydraulic tensioners. The manual will guide on inspection and replacement.
Spark Plugs:
Harley-Davidson HD-6R or equivalent (e.g., NGK DCPR7E). Check gap per manual specifications (typically 0.040 inches / 1.0 mm).
Fuel Filter:
Internal fuel filter within the fuel pump assembly. Replacement recommended per manual schedule or if fuel delivery issues arise.
Brand Origin:
Harley-Davidson Motor Company, founded in Milwaukee, Wisconsin, USA, in 1903.
Softail Platform:
The Softail platform, introduced in 1983, mimics the appearance of a hardtail frame with a concealed rear suspension system. The Deuce model (FXSTDI) specifically debuted in 2000 and was known for its extended front end and custom styling.
Model Production Period:
The FXSTDI Deuce was produced by Harley-Davidson from 2000 through 2007.
Manufacturing Location:
Primarily manufactured at Harley-Davidson's facilities in York, Pennsylvania, and Milwaukee, Wisconsin, USA.
