Question about 1993 Harley Davidson FXR Super Glide
Check across the battery with the engine running at high idle with a FULLY CHARGED battery in the bike. You should read 14.5 - 15.0 volts DC.
If not, pull the plug where the voltage regulator plugs into the engine. With the engine running, check for voltage between the two pins or sockets in the plug in the engine. Put the red lead of your meter in or on one pin or socket, the black in or on the other socket or pin. With your voltmeter set to the 50 volt AC range, you should read about 30 volts or more. The voltage coming out of the stator is AC since your bike is equipped with an alternator. If you read this much voltage, the stator is good. If you read less or no voltage, your stator is bad.
Now, check to make sure your voltage regulator is grounded. That's why you usually find a star washer between the voltage regulator body and the frame on most bikes. The star washer will dig into each piece insuring a good ground. If the ground checks good inspect the pigtail coming from the regulator going to the engine. I've seen the wire inside the insulation of the wires break. Also check the large single wire that comes from the regulator and make sure it goes either directly to the battery positive side or to the connection where the battery cable connects to the starter. If everything checks good and looks good, the regulator is probably bad.
Hope this helps.
Posted on Oct 03, 2009
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Posted on Jan 02, 2017
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