Not charging the battery as i ride 2002 dyna fxd

cant test the regulator.....test the alternator...stator and roter make up the alternater...cant test the roter...its a magnet......test stator by unplugging it and put a test lead in 2 of the 3 conector terminals and then rotate 2 more times to test all...1-2,,,,1-3,,,,,2,3.......should get about 40 VAC...volts ac.....i bet one test will be low....below 20....replace stator...if test is good.....now do the same test but use ground instead of one of the lead terminals...check with ohms/resistance.....as long as all readings are OL...replace regulator...

Sound like a problem on charging section,try to check on alternator and regulator charge ,you probably want to take apart the whole charging system!

If you had your meter in AC VOLTS, and you only got three volts out of the stator, it's bad. Check for a shorted stator but putting your meter in OHMS R X 1. Put one probe on the engine case and then the other to one of the contacts and then to the other. You should read infinite ohms. 12.5 volts is the normal reading of a fully charged battery. I never do the shorted stator test. Why? If the stator is not putting out at least 30 volts at a high idle, it makes no difference if the stator is shorted or what, it needs replacing. That's the way I look at it.

Good Luck
Steve

If the cells are dead in the battery, it will never charge. You can go to Autozone and they will test it for free. The question would be if the battery is dead, why?? Are you just starting to ride after last season? How long has it been sitting? If sitting a while, the battery may just have died to age. If you are driving it all year, have the alternator/charging system checked

you have caused a wireing fult thats all, it likely to be a bad earth on the bars or you may have blown a fuse by shorting some thing out when you were doing the work start checking the wireing out with a meeter start from the regulator you should have volts from there back to the battery check for a main fuse as well

D08 means over-voltage. Your bike is over charging and will cook your battery. You regulator will have to be checked as well as your stator. If you have to drive to a dealership, keep your revs down as low as possible, at least not above 2000 revs. Do not drive more than a few miles or battery may get damaged. The letters simply mean set. So you have D08SEt which means D08 set.

with multi-tester hooked up to the wires. Set to ohm or volt reading and see if it spikes when you turn over bike

too many variables !
Firstly check battery under load ! any battery place or auto electrician can so it usually free!
do this before replacing any thing else!
make sure all connections are clean & tight
if battery is ok get them to check the charge rate on bike! its a simple test or you can do it with a volt meter they are only cheap to buy!

So you're running off the battery instead of the charging system, check all your wires from the alternator to the regulator/rectifier for open connections or shorts to the frame. You could have a bad rectifier if it's separate from the regulator, you may also have a bad alternator, if you've got a multi-meter check the AC voltage between the ground and each of the three wires coming from the alternator (usually yellow). They should all be about the same, and measure over 16 V, increasing with RPMs. Hope that helps