2003 Harley-Davidson Dyna Super Glide, Low Rider, Super Glide Sport, Super Glide T-Sport, Wide Glide Service Manual (P/N 99481-03A)

• Covers 2003 Harley-Davidson Super Glide, Low Rider, Super Glide Sport, Super Glide T-Sport, and Wide Glide models
• Official 525-page OEM publication (P/N 99481-03A, first edition 2003) establishing the technical baseline for the 2003 Dyna platform
• Features hundreds of exploded-view diagrams, complete wiring schematics, torque specification tables, and maintenance charts
• Outlines troubleshooting procedures for TSM/TSSM modules, MAP sensors, CKP sensors, evaporative emission controls, and starter jackshafts
• Explores step-by-step tasks for shifter cam assemblies, sealed wheel bearings, front brake calipers, and main circuit breakers

Technical Content Breakdown

This PDF service manual delivers detailed tear-down and rebuild information for the Twin Cam 88 engine, electrical systems, chassis, and transmission assemblies. You will find everything from foundational maintenance tasks, like changing fluids and spark plugs, to complex component-level repair procedures involving the transmission, cam support plate, and front fork cartridges. It also covers fuel system management, providing precise guidance on the C.V. carburetor and idle speed settings. Further sections outline steering head bearing fall-away adjustments and wheel lacing procedures for both cast and laced options. For the independent mechanic or DIYer, having direct access to these step-by-step instructions can save a high-priced trip to the dealership. You can independently tackle labor-intensive tasks like truing 16-inch, 19-inch, and 21-inch rims, rebuilding FXDX fork cartridges, or bleeding D.O.T. 5 silicone brake systems.

Beyond the engine and drivetrain, the documentation details chassis and frame specifications, including suspension geometry and engine mount stabilization. The appendixes provide metric conversions, electrical connector pinouts, and specialized tool references essential for professional-grade bench work. Alongside the standard drawings, the manual features drive belt wear analysis tables, battery charging rate charts, compression test results tables, oversize piston bore charts, and evaporative emission hose routing diagrams. By referencing the specific Kent-Moore tool numbers and diagnostic tables, technicians can quickly isolate complex electronic faults to fix the root cause rather than replacing parts by guesswork.

When executing a repair on the 2003 Dyna platform, be aware of a few documented mechanical traps. For instance, never attempt to retighten engine head bolts to resolve a leak, as this will actively cause severe engine damage. Additionally, when installing the clutch inspection cover, failing to thoroughly wipe all lubricant from the primary chaincase quad ring groove will squeeze oil outboard, resulting in a persistent weepage that mimics a failed seal.

Specification Highlights

Inside, the manual lays out exact fluid capacities and torque values needed for accurate workshop routing. For instance, transmission lubricant capacity is set at 20–24 oz (591.5–709.8 ml), while the primary chaincase requires 26 oz (768.9 ml). The spark plug gap for the standard No. 6R12 plug runs strictly between 0.038 and 0.043 in. (0.97–1.09 mm). You also get comprehensive torque charts covering critical fasteners, such as the 50–55 ft-lbs (67.8–74.6 Nm) requirement for front axle nuts, alongside specific suspension damping settings for the FXDX and FXDXT variants. Always cross-reference the original OEM documentation before beginning any hands-on work, as proper tooling and factory-approved procedures are vital for workshop safety and mechanical integrity.