One week in and I had my first incident.

Energy One

The Honch

Active Member
I've had the bike for one week and only put 120 miles on it when the electrical gremlin struck. I received my K9 last Wednesday, rode it that day and then I had to go on the road for work till the following Tuesday. Anyway Tuesday after work my Wife and I thought we'd go for a ride before some bad weather comes rolling in. At the half way point of our ride, I noticed I lost my RPM gauge and then about 2 miles from home we hit a pot hole and the bike died. Luckily I was able to coast off the road into a parking lot. Of course I had no tools on me and the only thing the bike would do is light up the speedometer. I ended up calling some friends who showed up with a trailer. After we got the bike in position I straddled the bike while on the trailer until my friends strapped it down. Unbelievably, as I was lifting my leg off the bike one of the ratchet straps broke loose and just as the bike was about 2 inches from smashing the tank onto the iron cross bar on the side of the trailer, I was able to stop the bike (pure adrenaline). Amazingly I wasn't hurt, as I was holding quite a bit of weight at an awkward angle. The bike unfortunately did suffer a little damage. The strap hook ripped my turn signal cable off and put a very small dig on the forks aluminum cross member. I can tell you, I was not relaxed until the bike made it back to my house safe and sound. That night, I couldn't sleep for shit , as all I could think about was this expensive/awesome bike I just bought and doesn't even start. On days off I normally sleep till 8:30,but not this particular morning. I was up at 7AM and by 7:30 I was in my garage armed with coffee and my laptop with my browser set to BigDogBiker. And I'm happy to say I was able to get the Dog running again in a few hours.:2thumbs: I actually had two problems. I had corrosion on my master solenoid relay (plus it wasn't seated properly) and the battery was bad. Initially I took the battery to AutoZone and they said it tested as good, so I just bought a battery tender. The battery had a voltage of 12.5 V, which I seen some people on here say that's not gonna cut it for these 117" motors. Anyway, after about 10 minutes on the tender the indicator is saying the battery is fully charged. I try to fire the K9 up and all it does is click. I immediately go back to AutoZone and get a new battery. I check it, and it's sitting at 12.5V just like my old one. Instead of letting it charge for awhile (I have no patience) I figure I'll fire it up. It was rough, but the new battery got it rocking and my baby was purring like a kitten again.:cheers: And now that my new battery was sitting on the charger all night, it fires right up no problem. I just wanted to say, this site was instrumental in helping me troubleshoot my chopper and even though I wasn't looking for it, it was a good learning experience :2thumbs:
 

Mr. Wright

Knows some things
Supporting Member
I'm glad you got it home safe, and got it going. I know the feeling, being down on the side of the road, it's hard to think when your the center of attention.
 

FrankBDPS

Well-Known Member
How many cranking amps is the autozone battery? It is likely not enough and will not survive long. Also did you check the voltage to see if the battery is charging?
 

BWG56

Guru
Sometimes I think these GM (glass matt) battery's are sitting on the shelf for a couple years before you buy, unless they have a big turn around like at a dealership. I had 2 battery's, 1 was 2yrs older than the other and they both load tested to 800 amps at the same time even though one was 2yrs older, 1 would start the bike and the other did not and both showed the same voltage. The first one when I first bought it would spin the 117 like no one's business, the 2nd one 2 yrs later, just purchased, started the bike but nothing like the previous one. As in most things, some are good and some are bad right out of the gate.
I'm on my 3rd year with the current battery, but I feel confident because I also carry an Antigravity jump start with me for insurance.:whoop:Go Curtis:cheers:
 
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BigDogBro1

Made in the USA
I don't buy any lead/acid battery with the electrolyte (acid) already added. Those batteries could have been activated a year or more earlier. I buy the battery dry and add the acid then charge it overnight before installing it. My current battery is an Interstate and has been performing very well the last three years.

When I'm not riding the bike the battery is always on the Tender.

Now get some sleep!
 

BWG56

Guru
I don't buy any lead/acid battery with the electrolyte (acid) already added. Those batteries could have been activated a year or more earlier. I buy the battery dry and add the acid then charge it overnight before installing it. My current battery is an Interstate and has been performing very well the last three years.

When I'm not riding the bike the battery is always on the Tender.

Now get some sleep!
What do you do with a glass matt battery?(no acid to add) Thats what was in mine from new.
 

Brew

Troop Supporter
So, why did our orignal BD batteries last so long at 270 CCAs? My original lasted 4 years...
 

BWG56

Guru
I would say that Big Dog at the time was using a lot of GM battery's and they were so to say, fresh and not a year or so old when they were put into service. I got 4 yrs from my original and 2 yrs on the 2nd one and I'm on 3rd yr with current on.
 

BBChopper

Supports 2 Disabled Vets
Troop Supporter
How many cranking amps is the autozone battery? It is likely not enough and will not survive long. Also did you check the voltage to see if the battery is charging?
Their Glass Mat is 310.

Johnson Controls,,,,
 
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The Honch

Active Member
The battery I put in is 310 CCA, It's the same as what was in it and the seller told me he put it in 2 years ago. I'm always going to leave it on the tender. I'm an electronic tech by trade, so this wasn't the kind of problem I was completely unfamiliar with. It was really a matter of knowing where to look, which was easy to do with the help of this site. BWG56, I love the anti-gravity jump starter idea, that's definitely on my buy list.
 

The Honch

Active Member
Second that!!! These bikes look and ride way too good to let em sit!!

Glad you got it straight Honch!

Thanks. It was nerve racking ripping into my K9, but I did learn some things about the wiring, which was nice. If I can just get through this riding season without a major problem (Till Nov around here) I will tear the bike down and go over all the electrical connections. Seems like a good Winter project.
 

bearman

Active Member
What do you do with a glass matt battery?(no acid to add) Thats what was in mine from new.
The AGM battery I bought for my Mastiff was already filled when I bought it, now after 2 years I need another one.
I bought an AGM (Absorbed Glass Mat) battery for the jet ski from the Interstate Battery store. It came empty in a box with a plastic container of acid. I watched as the counter guy pushed the plastic container down on the battery to break the seals and the acid started flowing down into the battery. It took about 20 minutes to absorb it all. Then the guy told me to be sure and charge it overnight before use.
They tried to give me a regular lead acid battery for it (they said that’s what the book called for) and I told them it would most likely be upside down on a regular basis in the jet ski so I needed the AGM.
I just got that one this spring so no idea on longevity yet.
 
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