Key facts
- Manuals
- 4
- Languages
- EN
- Last added
- 2023-10-19
Featured Harley-Davidson manuals

Harley-Davidson Softail® Models Electrical Diagnostic Manual
This manual provides detailed diagnostic procedures for electrical systems in 2018 Harley-Davidson Softail® models. It covers troubleshooting voltage drops, CAN communication, starting and charging systems, instrument panels, security systems, and engine management. Sections include diagnostic tools, trouble codes, component testing, and wiring diagrams.
The manual also includes specifications for key components such as the battery, spark plugs, ignition coil, starter, alternator, and regulator. It is intended for professional technicians and includes safety warnings and service guidelines to ensure proper maintenance and rider safety.
Covers: Initial Diagnostics · Diagnostic Tools · Diagnostics and Troubleshooting · Battery Testing · Starting System · Charging System

Harley-Davidson FL/FLH Models 1978-1980 Service Manual
This service manual covers maintenance and repair procedures for Harley-Davidson FL/FLH and FX series motorcycles manufactured between 1978 and 1980. It includes detailed instructions for chassis, engine, transmission, electrical systems, and miscellaneous components. The manual emphasizes using genuine Harley-Davidson parts and follows U.S. safety and emission standards. It also includes warnings about gasoline flammability and notes on service bulletins for updates.
Covers: Service Manual · Electra Glide - FL/FLH · Super Glide - FX/FXE/FXEF/FXS · Chassis · Engine · Transmission

Harley-Davidson Boom! Audio Expand 2.0 User's Guide
The Harley-Davidson Boom! Audio Expand 2.0 is a Bluetooth stereo headset designed specifically for outdoor sports activities and motorcycle helmets. It supports Bluetooth 3.0 with profiles including HFP, A2DP, and AVRCP, allowing users to listen to music, make hands-free calls, and control audio playback. The headset features a stable fit, durability, and advanced noise control.
Covers: Safety Precautions · Package Contents · Getting Started · Configuration Setting · Pairing with Bluetooth Devices · Mobile Phone Call Making

Harley-Davidson BOOM! BOX 2018 Owner's Manual
The 2018 Harley-Davidson BOOM! BOX is an infotainment system designed for motorcycles, featuring a touchscreen interface, Bluetooth connectivity for phones and audio devices, SiriusXM satellite radio, and navigation capabilities. The system integrates with the motorcycle's electrical system to provide hands-free calling, music playback, and turn-by-turn directions.
Covers: Safety First · Controls and Components · Basic Operation · System Settings · Media Playback · Bluetooth Connectivity
Latest Harley-Davidson manuals
Harley-Davidson Softail® Models Electrical Diagnostic Manual
Service Manual 724 pages · 8.9 MB · ENComprehensive service manual for diagnosing and repairing electrical systems in 2018 Harley-Davidson Softail® motorcycles.
Harley-Davidson FL/FLH Models 1978-1980 Service Manual
Service Manual 6 pages · 442 KB · ENService manual for Harley-Davidson FL/FLH and FX series motorcycles from 1978 to 1980.
Harley-Davidson Boom! Audio Expand 2.0 User's Guide
User Manual 46 pages · 4.3 MB · ENThis user guide covers the setup, operation, pairing, and intercom features of the Harley-Davidson Boom! Audio Expand 2.0 Bluetooth headset for motorcycle…
Harley-Davidson BOOM! BOX 2018 Owner's Manual
User Manual 222 pages · 7.9 MB · ENThis manual covers the operation, features, and specifications of the 2018 Harley-Davidson BOOM! BOX infotainment system, including controls, media…
Which document do I need?
Service Manual
Disassembly, diagnostics and part numbers, for repair.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Harley-Davidson manuals
What is the recommended fuel type for these models?
The recommended fuel type is 91 Octane.
From: Harley-Davidson Softail® Models Electrical Diagnostic Manual
What is the normal idle speed for these models?
The normal idle speed is 850 RPM.
From: Harley-Davidson Softail® Models Electrical Diagnostic Manual
What safety precautions are required when refueling or servicing the fuel system?
You must stop the engine and not smoke or allow open flames or sparks during refueling or fuel system servicing.
From: Harley-Davidson FL/FLH Models 1978-1980 Service Manual
What legal restrictions apply to emission system components?
Any substitution, alteration, or adjustment of emission system components outside of factory specifications may be prohibited by law.
From: Harley-Davidson FL/FLH Models 1978-1980 Service Manual
How many people can participate in an intercom conversation?
The headset supports full duplex intercom conversations with up to four companions.
Can the headset be used for music playback?
Yes, it functions as a Bluetooth stereo headset for audio devices such as MP3 players.
