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How do you test the charging system on a 2001 harley dyna low rider to see if alternator or regulator is not working?
Wiki User
∙ 12y ago
A automotive volt and amp tester is best but you can determine voltage with just a volt meter connected at the battery. Start the bike, run the RPMs up to about 2,000 and hold it there for 30 to 45 seconds. See if you have a rise in voltage to about 13.7 to 14 volts. (considering the battery itself is in good condition) no Low state of charge or bad cell. This test will tell you at least the alternator is producing voltage and the regulator is working. I would be more suspect of the regulator as the alternators on Harleys are not that notorius for failing. Just for your information, the alternator runs on the left side of the engine crankshaft inside the primary cover. I was doing some heavy duty hotrodding on my modified 86 FSXTC when I spun the outer housing of the alternator and had to pull the primary cover, chain and front engine sprocket.
Wiki User
∙ 12y ago
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