Question about 2001 Harley Davidson FXDL Dyna Low Rider
Have a 2001 Dyna Lowrider and I think the battery might have a dead cell if it does will it show as being charged run for a short while and die
Hi, Sean if your charging system is ok then you need a new battery you will need a multimeter for this procedure also in order to check out any main electrical system, you have to start with a fully charged battery 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, your battery may show 12.5 volts or more during an initial cursory test but in reality has little or zero amps and must be replaced. AGM batteries are prime for this type of deception. All voltage readings will be on the DC scale except for Stator Output which will be AC
"WARNING" never plug or unplug any electrical connector in the charging system with the engine running !!!
1. Check battery terminals for damage or corrosion, check battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
2. Check the voltage drop at the battery when you hit the starter button, anything below 9 volts you might have a faulty battery.
3. Check voltage at the battery with the bike running between 2000-3600 RPM, depending on system specs, your readings should be 14.3 to 14.7 volts. If you are not getting these numbers, you might have a faulty voltage regulator.
4. Make sure voltage regulator is "GROUNDED" and functioning properly, there is a YouTube video link below showing you how to test a voltage regulator.
5. Unplug the connector to the alternator and hook your multimeter leads to the alternator (pin/socket selection does not matter) set the multimeter to AC volts, at an idle the multimeter should read 16 to 20 volts AC. at 2,000 RPM 32 to 40 AC volts, 3,000 RPM 48 to 60 AC volts. If you are not getting these numbers, you may have a faulty alternator rotor.
6. Set the multimeter to OHM'S, connect one lead to the alternator (any pin/socket) and the other to a ground, the multimeter should read infinity. Connect both leads to the alternator multimeter should read 0.1 to 0.2 OHM'S. If you are not getting these numbers, you have a bad stator.
7. Check all wiring in the charging circuit for worn or chaffed spots and all wiring connectors in the circuit for corroded, broken, or loose pins/sockets, which is the # 1 offender.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at firstname.lastname@example.org. Good luck and have a wonderful day.
Testing the Battery and Charging System Harley Davidson FXSTC
Harley Davidson DYNA Models Workshop Service Repair Manual 2001 $9 very cheap
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Posted on Apr 24, 2017
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Posted on Jan 02, 2017
It sounds like your alternator is not charging. You may want to have it tested and replace/rebuild it if necessary. Many times the problem is that the brushes are worn in the alternator and it stops charging correctly. The brushes are usually attached to the voltage regulator and are replaceable if you have the parts and skill. You can also replace the voltage regulator/brush assembly as a unit.
Many parts stores will test your alternator for free.
If you need more help, post a comment.
Posted on Jun 16, 2009
Check your battery terminals make sure they are clean and corrosion free.
Also check all ...A-L-L courtesy lights in your car. there are some ceiling mounted lights that are passenger operated and may be on... Also check your glove compartment and consoles for lights.
Also check for charger cords... These have indicator lights and sometimes can drain the batt as well.
Also, under the hood, is a gravity activated lamp . Open the hood and make sure that it's going off and staying off as the hood closes...
Let me know if you find anything...
Posted on Jul 28, 2009
SOURCE: battery died for no reason
About the only thing you can do is disconnect the battery and connect them again after 5 minutes. If that do not work check for blown fuse. Other than that then the XM radio has been damaged by the charger.
Posted on Nov 14, 2009
Change all your relays,especially in the engine bay,check your idler control valve/servo for faulty or short circuited.Also check all the fuse boxes for contamination,Spray with circuit board cleaner or something similar.
Posted on Sep 27, 2012
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