Question about 2000 Harley Davidson FLSTC Heritage Softail Classic

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What is the most likely problem if I don't get a reading of 13.0-13.9 volts at the battery on my 2000 Heritage softail classic?

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The most likely problem is the voltage regulator.

But if you wish to check your alternator output, you'll need a DVOM (digital volt ohm meter). Look at the front of your engine case where the wires from the regulator plug into the case. Unplug the plug and look into the plug in the case. There are two metal contacts in the plug. These are where you are going to put the probes to test your regulator output. Set your DVOM function selector switch to AC VOLT, 50 VOLTS or greater. Now, start the engine and bring it to a fast idle. Put one meter lead into each connector down inside the plug in the case. Your meter should read at least 30 volts. If not, your stator is bad. If it does, replace your regulator.

Good Luck
Steve

Posted on Sep 14, 2010

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I think I burnt out the regulator. I boosted the bike with my car.


Using a multimeter, set it to DC and touch the red terminal to the positive side of the battery and the black terminal to the negative side of the battery.
At idle the multimeter should read 12.75 - 13.0 volts
At 2000 RPM the multimeter should read 13.0-14.8 volts

If your not getting these readings, your voltage regulator is bad.

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How do I test the charging system on a 2000 haritage softail classic


engine running at idle the voltage at the battery should be at least 13.0-13.9 volts

Sep 14, 2010 | 2000 Harley Davidson FLSTC Heritage...

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Hi Anonymous, perform the following tests:
1. Fill acid type batteries to proper levels.
2. Charge battery overnight at 1-2 amps you need 12.5 volts or better after charging.
3. Hook up battery positive cable, then with your multimeter on the milliamp scale connect one lead to the negative battery post and the other lead to the ground cable. Meter should read 3 milliamps or less, 10 milliamps with a radio, 15 milliamps with radio and CB. If your meter reads higher you need to isolate the circuit by pulling fuses and circuit breakers one at a time and observe meter for drop in aprerage then get out your test light and track down the short in that circuit.
3. Make sure all connections are clean and tight especially the negative cable at both ends.
4. Hook up volt meter to battery and start engine, if meter falls below 9.5 v while cranking replace battery.
5. With engine running at 3600 RPM battery should read 14.3-14.7 volts if not continue tests.
6. Unplug voltage regulator from alternator at crankcase by front of primary cover.
7. To test voltage regulator go to: https://www.youtube.com/watch?v=F8EjV0IjW9Q
8. With ohm meter, one lead grounded, touch alternator pin meter should read infinity, if not replace stator.
9. With ohm meter, both leads touching alternator pins meter should read 0.1 to 0.2 ohms on 1989 and later models. 0.2 to 0.4 ohms 1988 and earlier models, if not replace stator.
10. With volt meter set on AC scale, both leads touching alternator pins meter should read
16 to 20 volts AC for every 1000 RPM'S 1989 and later and 19 to 26 volts AC for every 1000 RPMS. If not replace rotor.
17. For a free wiring diagram please visit the website below and good luck.Harley Davidson Wiring Diagrams and Schematics

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I have a 97 hd dyna. I have been using a battery


More like your Stator is not puting out enough amps to the regulator. Off your battery should be 12 plus volts idle should be 13 plus volts and at 2000 rpm 14 plus volts but anything above 13 is chargeing just fine. check this with a volt meter directly to your battery.

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You need to use an ohmeter and test the stator to see if it is grounded out. Pull the plug going to the regulator and put one lead to a good ground and then poke the other lead in each of the connector holes to the stator. do this with the motor not running. If you have continutity on either wire to ground then the stator is shorted/grounded and must be replaced. If everything is ok there then the regulator is bad.

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