Question about Harley Davidson XL 1200 C Sportster Custom Motorcycles

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I have a 1993 Harley Divison 1200cc sporster i have a charging problem i need a circuit diagram to find and test the stater and regular to see which is bad

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To test your charging system. Start off with a fully charged battery in your bike. Connect a digital Volt Ohm meter across the battery. Red meter lead to positive and black meter lead to negative post. Put the meter in DC voltage 20 volt range. Start the engine and bring it to a high idle. You should read 14.5-14.8 volts.

If not unplug the regulator from the wires from stator. Set your meter to AC Volts, 50 volt range. Make sure you're in AC volt range as you'll be measuring alternating current. Start the engine and bring it to a high idle. Insert the meter probes, one into each socket of the plug. Makes no difference which lead goes where as it's Alternating Current. You should read 19-26 volts per 1000 RPM.

Now, there's a bunch of mess about how to check for open circuits or short circuits in the stator but I've found it's a waste of time. If the stator ain't making juice, who cares why, Just replace it.

If you still want a schematic, contact me off group at wd4ity@bellsouth.net and I'll scan a copy and send it to you. Make sure you tell me what you want in the e-mail as I may not remember.

Good Luck
Steve

Posted on Jul 09, 2010

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