Some Harley owners like to fix their own bikes, thereby saving both money and riding time. A Harley Davidson can experience electrical problems at any time, but there can be a wait for a service appointment at some repair shops. The most common cause of electrical problems on a Harley Davidson is the battery or the voltage regulator. Troubleshooting can be performed in any garage, and it saves on expensive service bills.
Test the Battery
Check the voltage of the battery while it is disconnected from the bike using the multimeter. The volts should be no less than 12 volts.
Connect the battery to the bike. Reconnect the multimeter to the battery.