Question about 2006 Harley Davidson FLHR Road king
If you're sure the battery is good. we'll test the charging system first. You'll need a DVOM (digitial volt ohm meter) to test the system. Start with a fully charged battery. Connect the red meter lead to the positive post of the battery and the black meter lead to the negative. Put the function selector switch of the meter in DC VOLTS, 20 VOLT or greater. Start the engine and bring it to a high idle. You should read between 14.5 - 15.0 Volts. If not proceed to the stator test.
Look down on the front of your engine and find the plug coming out of the case where the voltage regulator plugs into the engine case connector. Unplug this connector. Down inside the connector are two contacts. These contacts are where we're going to put the meter leads. It makes no difference which lead goes where as we're measuring AC voltage. Put the meter's function selector switch in AC VOLTS, 50 VOLTS or greater. Start the engine and bring it to a high idle. Touch the meter leads to the two contacts down in the case. You should read at least 30 volts.
So, if you don't read the 30 volts at the engine case, the stator is bad. If you 30 volts or higher but the test at the battery was bad, replace the regulator.
Posted on Sep 03, 2010
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Posted on Jan 02, 2017
If your charging system is working, you can disconnect the battery while it's running, and it will stay running. The stator assembly (Like a car alternator) will supply the current to keep the bike running along with charging the battery. A multi-meter should show around 12.5 volts at the battery with the engine off, and just under 14 volts running, under normal working conditions.
Posted on Jul 07, 2009
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