Question about Motorcycles
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Posted on Jan 02, 2017
You seem to have an intermittent open. Grab your headlight wires and wiggle them while watching the headlight itself. Se if you can make the light go on and off. check all elecrical connections. You might have a bad ground somewhere. Chaz Moto Dc
Posted on Feb 25, 2010
SOURCE: 06 hdflhr changed battery
Disconnect the negative battery cable from the battery. Make sure the ignition switch is off. Now, touch the battery cable to the battery post and see if you see a spark. You may see a very small spark but it it's any size at all, you've got something drawing current while the ignition switch is off. If your bike is fuel injected, your ECM is probably going to draw a bit of current but not enough to kill the battery. If you suspect too much of a drain, connect a amp meter in series with the cable and the battery to determine how much draw you actually have. To locate which circuit it's on, unplug the fuses one at the time until the draw goes away.
To check the charging system, you must charge your battery fully. You'll need a DVOM (Digital Volt Ohm Meter). Put the meter's function selector switch to DC VOLTS, 50 volt range. Connect the red meter lead to the positive post of the battery and the black meter lead to the negative post of the battery. Start the engine and bring it to a high idle. After about a minute or so, you should read 14.5 to 15.0 volts. If not, check the output of the alternator.
To check the alternator, follow the two wires from the regulator to the plug on the front of the engine. Unplug the plug and look into the engine side of it. You'll see two metal connectors down inside the plug. This is where you're going to check the output of the alternator. Put your meter's function selector to AC VOLTS, 50 volts or greater range. Start the engine and bring it to a high idle. Touch either lead to one of the connectors down in the plug and the other lead into the other connector. Since you're measuring AC voltage, it makes no difference which lead goes where as long as they don't touch each other or the engine case. Your meter should read 30 volts or more.
If you don't have the 30 volts out of the alternator, your stator is bad. If you do have 30 or more volts, but not the 14.5 - 15.0 volts at the battery, most likely your regulator is bad. Make sure the regulator is grounded well to the frame. I usually put a star type lockwasher between the frame and the regulator on each of the mounting bolts to insure a good ground.
Posted on May 16, 2011
The faulty regulator can cause this problem.Get the voltage at regulator checked.If its weak or shorting it can cause such problems.
Also try this thing.Remove the main fuse for 5 minutes then reinsert it.The main fuse located near the battery compartment.Remove this main fuse, wait 5 minutes then re-0insert it then check.Many a times this reset the problem.But if that is not helping then get the regulator( alternator) checked.Also check the battery connections and ground.Anywhere its shorting or getting loose.--------This will help.Thanks.Helpmech.
Posted on Jun 19, 2011
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