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Discussion Starter #1
Took my '07 Night Rod Special to work today, no problem. I get on the bike after work and just get some weird clicks and the clock flashes when I tried to start it. I thought thats it, my 12yo battery finally died, and I jumped it from a car and it started but not right away as usual, took a few turns. I start my way home and it feels like only one cylinder is firing. I get a couple miles down the road and the bike dies. I dont think its the battery, cuz if it was I would have made it home right? You only need a battery to start a bike not run one right? I am searching the site for this issue, didnt see much so far.
 

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Took my '07 Night Rod Special to work today, no problem. I get on the bike after work and just get some weird clicks and the clock flashes when I tried to start it. I thought thats it, my 12yo battery finally died, and I jumped it from a car and it started but not right away as usual, took a few turns. I start my way home and it feels like only one cylinder is firing. I get a couple miles down the road and the bike dies. I dont think its the battery, cuz if it was I would have made it home right? You only need a battery to start a bike not run one right? I am searching the site for this issue, didnt see much so far.
Almost certain to be battery
 

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Noel
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There is quite a bit of load, ECM, Lights, Fuel Pump on the ancient battery, not enough to keep her running.

The alternator can't keep up with the recharge draw on the really dead battery while keeping the bike going with run demands, hope you have not damaged the rectifier/regulator.

Get a new battery and verify that you still get a good charging voltage once installed.
 

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12 years on a battery is unusual to say the least. Most of us are lucky to get 4 years.
 

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Discussion Starter #5
Got a new battery today. Hummed a few bars of taps as I handed it over to avoid a $10 core charge. Supposedly it was charged, but my charger says its not, charging overnight. If this works, its amazing that the battery started the bike and rode fine Friday morning but not after work. Thank God it didnt die going to or from the Vrod rally I went to 7 weeks ago in Ohio. I ride year round so my batteries last longer. Thanks for the advice guys.
 

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12 Years on a Battery!!!!

Got a new battery today. Hummed a few bars of taps as I handed it over to avoid a $10 core charge. Supposedly it was charged, but my charger says its not, charging overnight. If this works, its amazing that the battery started the bike and rode fine Friday morning but not after work. Thank God it didnt die going to or from the Vrod rally I went to 7 weeks ago in Ohio. I ride year round so my batteries last longer. Thanks for the advice guys.
12 years on one battery is outstanding. Best I ever got was 7 years on my old Shovelhead dresser and I never heard of anyone doing better. I'd say it's time for a new one anyway. You can check your old one but I believe you'll find it might not be able to hold a charge. If you've got a multi-meter check your old battery and your charging system. if you don't have a multi-meter, don't know how to check your charging system or don't feel comfortable doing it have your dealer or a shop check them out. It shouldn't take more than 1/2 hour to check everything.
 

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I killed my bat yesterday (left the ignition on, not running for 6 hours) DUH....
while slow tender charging i went back and noticed the instrument cluster lights were flashing intermittently. OH SH*T i thought...
I thought i might have fried my ignition.

So i unhooked the tender and ***removed the maxi-fuse like i should have.
Charged on tender overnight- All is good, took long ride get the Rpms up to boost it up

Next battery I get will be one of the new lite lithium type ones.
1/3 the weight of a lead acid battery - lose like 6lbs of weight up high behind the triple tree :)


https://www.jpcycles.com/product/743-846/twin-power-lithium-ion-batteries?mrkgcl=444&mrkgadid=3298933079&utm_source=google&utm_medium=cpc&utm_term=465482604228_product_type_motorcycles_product_type_electrical_and_batteries_product_t&utm_campaign=Google+Shopping++Generic+-+Electrical+and+Batteries&product_id=743-846&utm_content=pla&adpos=1o4&creative=278867792042&device=c&matchtype=&network=g&gclid=CjwKCAjwkenqBRBgEiwA-bZVtkTXxMM_9_ue9k23IJRuKdrkzcsVFjqj3C0poRN6zU0uMwzZubXYkBoCIZMQAvD_BwE


https://www.jpcycles.com/product/805-180/bikemaster-lithium-ion-battery-charger-maintainer
 

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Discussion Starter #8
It was the battery. The first one Advance Auto gave me was a core exchange. Charged it overnight and still nothing. Damn! Sunday I took it back and the manager immediately saw the core sticker and gave me a new one. Back on the road. Here's a pic of the original that lasted since '07. Thanks for all the advice guys.
 

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Discussion Starter #11
Sonofabitch!

Guess what, it wasn't the battery. Same thing happened today, first day taking the bike to work with the new battery. 30 minute ride in, no problem. On the way home tonight, i started to feel that now familiar power loss. Eventually just died about halfway home, clock was flickering. The wife is getting pissed, almost told me to take an Uber, came and got me. I owe her another dinner out.

I had wondered what kind of battery dies after a ride? It must be my stator right? I mean, how long a battery thats not being charged last? About 45 minutes? I will borrow a voltage meter and test it this weekend. How hard are they to change? Gotta drain all the oil out right?
 

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Werewolf_77
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voltage regulator

Guess what, it wasn't the battery. Same thing happened today, first day taking the bike to work with the new battery. 30 minute ride in, no problem. On the way home tonight, i started to feel that now familiar power loss. Eventually just died about halfway home, clock was flickering. The wife is getting pissed, almost told me to take an Uber, came and got me. I owe her another dinner out.

I had wondered what kind of battery dies after a ride? It must be my stator right? I mean, how long a battery thats not being charged last? About 45 minutes? I will borrow a voltage meter and test it this weekend. How hard are they to change? Gotta drain all the oil out right?

voltage regulator is located on the radiator ... two bolts!!!

worry about the stator later.

this just happened to me!
 

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Guess what, it wasn't the battery. Same thing happened today, first day taking the bike to work with the new battery. 30 minute ride in, no problem. On the way home tonight, i started to feel that now familiar power loss. Eventually just died about halfway home, clock was flickering. The wife is getting pissed, almost told me to take an Uber, came and got me. I owe her another dinner out.

I had wondered what kind of battery dies after a ride? It must be my stator right? I mean, how long a battery thats not being charged last? About 45 minutes? I will borrow a voltage meter and test it this weekend. How hard are they to change? Gotta drain all the oil out right?
45 minutes would be about right to drop to a critical level. I'm surprise you didn't do a charging check for output with the new battery. It's possible the old battery developed high resistance and took out the regulator. It's the weaker of the two charging components and will usually crap out first. If you are not seeing 13.8-14.2 at the bat terminals at idle, unplug the stator wire an do a stator test for (AC) output. If that's good, it's the regulator. Keep in mind, each time you kill the battery, it's life span suffers big time. Some will turn to shit, just after only one discharge and will be weak from then on and life span will be very short.
Ron
 

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Noel
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................Get a new battery and verify that you still get a good charging voltage once installed.
As Ron pointed out just above and I mentioned earlier, you and anyone ever experiencing this need to do a voltage test before certifying your work ready for road service.

If there is a weak or no charging voltage, most likely it's the regulator.
 

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Hey Guys,
I'm having the same issue. Rode into work, no problems. When I started the bike to leave I got the battery light and service light came on, I rode for 20 miles with the lights on, turned the bike off while coasting on a back road and went to restart and nothing. Popped the clutch and the bike fired up but then it wouldn't idle down and the cluster started to flash. I test the battery, charged it, let is sit for a day and checked the battery again an it was reading 12.75 Volts which leaves me to believe its not the battery. I started the bike and the volts dropped to 12.3 while idling.

Hey rbabos, how do I perform the test on the stator that you mention above? obviously I have to have the bike running, but what should the voltage be? Do I connect the red wire to the stator wire and the black to a ground point on the bike?

Any help would be great.
Thanks,
08 VRSCDX.
 

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Noel
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Charge up the battery again so that you can start and run the bike when ready to do the voltage testing, hopefully you get to an idle of about 1200 for the values noted below.

Follow the wire group coming out of the left side engine cover, locate the connector under the left side radiator cover, remove the cover.

Disconnect at the junction, there are three conductors 3 phase AC, while engine is running, measure the AC volts across any two conductors on the side of cable coming from alternator cover, test all three combinations, the amount of AC voltage should be consistent ~20 to 23 volts the value changes based on RPM of idle.

If these check out OK, then your stator is probably OK and the regulator has likely failed.
 

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Charge up the battery again so that you can start and run the bike when ready to do the voltage testing, hopefully you get to an idle of about 1200 for the values noted below.

Follow the wire group coming out of the left side engine cover, locate the connector under the left side radiator cover, remove the cover.

Disconnect at the junction, there are three conductors 3 phase AC, while engine is running, measure the AC volts across any two conductors on the side of cable coming from alternator cover, test all three combinations, the amount of AC voltage should be consistent ~20 to 23 volts the value changes based on RPM of idle.

If these check out OK, then your stator is probably OK and the regulator has likely failed.
Thanks TaxmanHog. Much appreciated . I'll give that a try this weekend and I'll let you know what I find out.
 

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Hey you all, sorry for not responding back to my findings regarding the stator or regulator.
So I did the test on the stator and all checked out good. I ordered a new regulator, got it installed last weekend and all is good to go.

I just want to give a huge thanks to TaxmanHog for helping me trouble shoot this issue and saving me a lot of money not having to bring the bike into the stealership.

Thanks all.
 
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