Harley-Davidson Dyna Super Glide, Wide Glide, Street Bob, Fat Bob, Low Rider, and Switchback 2010 Service Manual (P/N 99481-10)

The 2010 Harley-Davidson Dyna Models Service Manual, P/N 99481-10, covers the six variants listed above, including the Japan-only FXDL Low Rider. It documents routine maintenance, component repair, and major mechanical overhauls.

• Engine repair: Top and bottom end overhaul, cylinder-head service, cam-support-plate work, oil-pump inspection, compression testing, and cylinder leakdown testing.

• Primary drive and transmission: Clutch overhaul, compensating sprocket and automatic primary-chain tensioner service, transmission disassembly, and main-drive-gear bearing replacement.

• Chassis and brakes: Wheel lacing and truing, front-fork rebuilding, steering-head bearing service, vehicle alignment, master-cylinder overhaul, and brake-caliper repair.

• Fuel system: Fuel-pump and injector replacement, induction-module service, fuel-pressure testing, intake-leak testing, and California evaporative-emissions service.

• Electrical and security: Starter overhaul, alternator/stator replacement, fuse and relay service, TSM/HFSM password learning, and H-DSSS setup information.

• Wiring and connectors: Model-specific harness diagrams, connector identification, AMP Multilock terminal repair, and terminal-crimping illustrations.

The manual is suited to mechanically experienced owners handling routine service and to Harley-Davidson technicians equipped for the major repair methods described.

Twin Cam Engine Repair and Oil-System Service

The compression and cylinder-leakdown sections help distinguish ring, valve, and head-gasket leakage before engine disassembly. Separate service charts identify work possible with the engine in the chassis and work requiring engine removal.

Internal coverage extends through hydraulic lifters, cylinders, pistons, crankcases, and camshafts. Flywheel and connecting-rod service covers inspection and replacement of the complete assembly.

Oil-pump coverage includes gerotor inspection, scavenge-port O-rings, and pump centering during assembly. Engine Oil Flow illustrations and the Oil Pump Torque Sequence support this work.

Clutch, Primary Drive, and Transmission Overhaul

The primary-drive section identifies the left-hand-thread clutch hub mainshaft nut and warns that using locking tool HD-41214 in place of HD-47977 can damage components.

Transmission coverage reaches the mainshaft, countershaft, dog rings, shift forks, and side-door bearings, with exploded assembly views and wear specifications. The manual warns that hammering the shafts during side-door removal can damage the bearings.

Chassis Maintenance and Brake Repair

Maintenance schedules cover engine oil, transmission lubricant, and primary-chaincase lubricant changes, along with air-cleaner service, exhaust-system leak checks, battery care, and suspension adjustment.

The chassis sections include steering-head fall-away adjustment and wheel alignment; the manual assigns vehicle alignment to a Harley-Davidson dealer. Drive Belt Wear Patterns distinguish damage conditions, while torque tables, tire-pressure data, and brake wear limits provide component-specific references.

Before starting any shop work, always ensure the motorcycle is properly secured on a lift and you are wearing the correct protective equipment for handling fluids and heavy components.

Fuel-System Service and Diagnostic Limits

Fuel-pressure testing uses gauge HD-41182 and adapters HD-44061. Pump, injector, and sensor sections describe removal and installation, while the California-model section explains the charcoal canister and purge system.

Diagnostic scope: EFI and starter troubleshooting, along with further diagnosis of out-of-range fuel pressure, are referred to the separate Electrical Diagnostic Manual, which is not included in this PDF.

Electrical Repair, Security, and Connector Details

Fuse locations and starter/system relay replacement are documented. Charging Circuit and Ignition Circuit diagrams show the related wiring, with separate main-harness layouts for the two Dyna model groups.

TSM/HFSM password-learning and H-DSSS actuation information is included. Fob assignment requires Digital Technician II, HD-48650, at an authorized Harley-Davidson dealer.

Appendix A covers AMP Multilock, Deutsch, Delphi, Molex, and Packard connector repair. Its Terminal Crimping Procedure illustrations show terminal orientation and crimp inspection; AMP Multilock work specifies crimper HD-41609.

Examples of Fuel-Pressure and Ignition-Cable Test Data

The fuel-pressure test specifies a steady 55–62 psi (380–425 kPa) while engine speed changes.

For Dyna spark-plug cable inspection, the specified 19.00-inch front cable has a resistance range of 4,750–12,675 ohms; the 7.25-inch rear cable is rated at 1,813–4,833 ohms. These limits are tied to the listed cable lengths, rather than a single resistance range for both cylinders.

Text Search, Bookmarks, and Printable PDF

Search and diagram detail: Text search works across the main service chapters, but some specification tables and wiring-diagram labels are not searchable. Embedded PDF bookmarks cover chapters, appendices, and reference sections. Small wiring labels require zooming.

One printable English PDF contains 568 pages, including the cover, front matter, appendices, reference sections, and 25 blank or note pages.