Market Segment:
Cruiser motorcycle segment, known for customization and rider engagement.
Rider Profile:
Appeals to riders seeking a blend of classic Harley-Davidson feel with capable handling and the option for customization.
Competitors 2003:
Other Harley-Davidson models (Sportster, Softail), Indian, Victory, Japanese cruisers (Honda Shadow, Yamaha V-Star, Kawasaki Vulcan).
Dyna Advantages:
The Dyna platform in 2003 offered a blend of classic Harley-Davidson styling with more modern handling and performance characteristics compared to older platforms. The FXDX and FXDX-T models specifically enhanced this with improved suspension and braking.
Pictures Diagrams:
Manual is heavily illustrated with numerous pictures and diagrams to aid in understanding procedures and component identification.
Engine:
Complete overhaul, diagnostics, lubrication, cooling system (air-cooled).
Fuel System:
Carburetor (CV Carburetor) and Fuel Injection (EFI) systems, fuel pump, lines, tank.
Transmission:
Gearbox operation, maintenance, removal, installation, clutch assembly, primary drive.
Electrical:
Ignition system, lighting, charging system (alternator, regulator), starting system (starter motor), battery, wiring diagrams, fuses, relays, indicators.
Chassis:
Frame, suspension (forks, shocks), steering, wheels, tires, brakes (front and rear, including triple disc on FXDX), swingarm.
Drive System:
Drive belt inspection, tensioning, replacement, rear pulley, front and rear sprockets.
Starter System:
Starter motor operation, solenoid, drive engagement, and troubleshooting.
Fuel Injection:
Detailed coverage for EFI systems, including sensors, actuators, ECU, and diagnostic readouts.
Bodywork:
Fairings, tanks, fenders, seats, and associated mounting hardware.
Maintenance:
Routine service, fluid changes, filter replacements, adjustments, inspections.
Repair:
Complete tear down and rebuild procedures for all major components, component-specific repairs.
Troubleshooting:
Diagnostic procedures for common problems, symptom-based troubleshooting charts.
Torque Specifications:
Detailed torque values for all fasteners critical to safety and component integrity.
Timing Procedures:
Ignition timing adjustments and checks for the Twin Cam engine.
Wheel And Tire Service:
Wheel bearing replacement, tire mounting and balancing, wheel truing (if applicable).
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, including detailed diagrams and specifications.
Diagnostic Charts:
Includes troubleshooting charts and diagnostic procedures for electrical and mechanical systems.
Special Tools:
Identification and usage of specialized tools required for specific repair procedures is detailed.
Engine Type:
Air-cooled, Twin Cam 88 (or 88B for vibration isolation in some models).
Displacement:
1449 cc (88 cubic inches)
Torque Approx:
Approx. 85-90 ft-lbs (115-122 Nm) @ 3500 RPM - varies by specific tune and model.
Fuel Delivery:
Electronic Sequential Port Fuel Injection (ESPFI) or Carbureted (Multi-point fuel injection may be present on some 2003 EFI models, manual covers both).
Engine Configuration:
Air-cooled, 45-degree V-twin.
Transmission Type:
5-speed constant mesh, sequential manual gearbox.
Clutch:
Wet, multi-plate, diaphragm spring clutch.
Primary Drive:
Enclosed, wet primary drive system containing clutch and transmission components.
Gear Ratios:
Specific gear ratios for each of the 5 speeds are detailed within the manual for performance analysis and troubleshooting.
Audio Options:
Optional factory radio/audio systems were available on some models, manual covers wiring and basic troubleshooting for these.
ABS:
Anti-lock Braking System (ABS) was an optional feature on some 2003 models, particularly those with enhanced braking systems like the FXDX.
Electronic Diagnostics:
The manual supports diagnostics of electronic control modules (ECM/ECU) used in EFI systems.
Wiring Diagrams Utility:
Comprehensive wiring diagrams are included, essential for diagnosing and repairing electrical issues or for custom modifications.
Oil Change Interval:
Typically every 2,500-5,000 miles or annually, refer to manual for exact Twin Cam requirements.
Belt Tension Check:
Regular checks of drive belt tension and condition are recommended, with specific intervals provided.
Engine Oil Type:
Harley-Davidson recommends specific V-Twin engine oil (e.g., SYN3 or 20W50 mineral oil) - manual will detail exact specifications and capacities.
Transmission And Primary Oil:
Dedicated gear oil for the transmission and primary chaincase oil are specified in the manual.
Brake Fluid Type:
DOT 4 brake fluid recommended for hydraulic brake systems. Manual will specify exact type and bleeding procedures.
Chassis Lubrication:
Specification for greasing points in steering head, swingarm, and wheel bearings.
Common Issues 2003 Dynaglide:
Potential issues can include starter solenoid failure, regulator/rectifier issues, and some transmission noise (typical of early Twin Cams), which the manual will help diagnose and address.
Fuel System Maintenance:
Guidance on cleaning and servicing CV carburetors or checking EFI components for optimal performance.
Harley Davidson Legacy:
Founded in 1903, Harley-Davidson is an iconic American motorcycle manufacturer renowned for its V-twin engines and cruiser styling.
Dyna Lineage:
The Dyna platform, introduced in 1991, evolved through various iterations. The 2003 models represent a mature stage of the Twin Cam engine and chassis development, with specific sub-models like the FXDX offering sportier features.
Fxdx Super Glide Sport Enhancements:
The FXDX Super Glide Sport, introduced in 1999, featured improved suspension components and triple disc brakes (dual front discs), differentiating it from standard Dyna models.
Fxdx T Super Glide T Sport Features:
The FXDX-T Super Glide T-Sport (replacing FXDS-Conv in 2001) added a fork-mounted fairing and improved detachable saddlebags, offering touring capabilities.
Fxds Conv Replacement:
The FXDX-T Super Glide T-Sport replaced the FXDS-Conv Dyna Convertible in 2001 and was discontinued in 2003. This manual covers models relevant to this period.
Manufacturing Location:
Harley-Davidson motorcycles are primarily manufactured in the United States.
