Help!!! I left my bike on and now my battery is dead at work. - Wrist Twisters
 
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post #1 of 40 Old 11-06-2008, 10:17 AM Thread Starter
 
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Exclamation Help!!! I left my bike on and now my battery is dead at work.

ok yes i just left my key in bike and in the on position, so if anyone could let me know what i can do to charge the battery, Can i jump it off with a car? if so how long???i'm know i'm a eye dee ten tee lol.

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post #2 of 40 Old 11-06-2008, 10:25 AM
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do a push start and let it run at idal for 15 min. or ride it for 15 min!!! lol

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post #3 of 40 Old 11-06-2008, 10:34 AM
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I ran my battery down before but it bump-started really easy. Even with my leg fresh out of a cast I was able to hobble across the parking garage and get it bumped by myself. Give it a bump or ask a co-worker to give you a push and go for a 15-20 min. ride (keep the rpms around 2k or higher). You should be ok after that.

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post #4 of 40 Old 11-06-2008, 10:47 AM
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The bike is injected if there is enough battery left to power up the computer it will roll start. You can jump start from a car. Getting to the battery connections with jumper cables, good luck. Depending on how old the battery is it may be a good reason to replace it with a new Yuasa. Again good luck.

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post #5 of 40 Old 11-06-2008, 10:48 AM
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and definitely do NOT use a running car to jump your bike. The charging system on a car is not compatible with the electrical system on a bike.

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post #6 of 40 Old 11-06-2008, 11:12 AM
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I'm going to go way out on a limb here and say, push start it and drive it around for a while.

I could be wrong, as I see this is in the NAKED BIKES ONLY section... I assume this issue is special to 919's only?

I ran my RC-51 out of battery power one day and had to get some assistance to get it pushed fast enough to get the chubby v-twin to turn over but the 919 should push over pretty easy.

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post #7 of 40 Old 11-06-2008, 11:14 AM
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Quote:
Originally Posted by alinosa View Post
and definitely do NOT use a running car to jump your bike. The charging system on a car is not compatible with the electrical system on a bike.
I thought the 919 used a 12V battery...? If that's the case, it ought to be fine....

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post #8 of 40 Old 11-06-2008, 11:20 AM
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Quote:
Originally Posted by alinosa View Post
and definitely do NOT use a running car to jump your bike. The charging system on a car is not compatible with the electrical system on a bike.
Different? How?
The starter is only going to take the amperage it needs. You're not going smoke the starter just because the charging system / battery in the car has a higher capacity.

I plan to die young, as late as possible.
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post #9 of 40 Old 11-06-2008, 11:29 AM
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You'd be fine jumping it but I'd do a push start first...More then likely it will fire up and as long as the battery is still good, a good ride around town will charge it back up. Then if you have access, put it on a charger when you get home. Good luck


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post #10 of 40 Old 11-06-2008, 11:58 AM
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Jump it in second gear!

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post #11 of 40 Old 11-06-2008, 12:25 PM
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DO NOT JUMP IT OFF A RUNNING VEHICLE. Its completely safe to jump it off a car just make sure its not running....

http://www.shadowriders.org/faq/jumpstarting.html

I am pretty sure you cant bump start a fuel injected bike if the battery is completely dead..

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post #12 of 40 Old 11-06-2008, 12:42 PM
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Used that bloody kill switch, did ya?

If you jump off of a car, it's not the starter, but all the other stuff that is in peril. Bump start it if at all possible. Battery tender after you get home.

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post #13 of 40 Old 11-06-2008, 12:50 PM
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Quote:
Originally Posted by SAFETYpin View Post
DO NOT JUMP IT OFF A RUNNING VEHICLE. Its completely safe to jump it off a car just make sure its not running....
+1, The charging system of an automobile creates way more amperage than the bikes rectifier/regulator are designed to handle. It is safe to jump it of the cars battery, but without the aid of the cars charging system.

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post #14 of 40 Old 11-06-2008, 03:31 PM Thread Starter
 
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well i have a pretty good hill, i have tried to bump start it 4 times, and yes i have pushed it back up the steep hill 3times, so now i am waiting for some one to get here with jumper cables and i am going to attempt to jump it off then run it the 53 miles back to the house, so wish me luck lol first my carolla now this .

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post #15 of 40 Old 11-06-2008, 03:39 PM
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Damn bro...I wish there was more we could've done for ya...If I was closer I would've helped ya out...Hope everything works out ok


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post #16 of 40 Old 11-06-2008, 03:48 PM
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Quote:
Originally Posted by brahmadawg44 View Post
well i have a pretty good hill, i have tried to bump start it 4 times, and yes i have pushed it back up the steep hill 3times, so now i am waiting for some one to get here with jumper cables and i am going to attempt to jump it off then run it the 53 miles back to the house, so wish me luck lol first my carolla now this .
Not to sound like an ass, because this has happened to me before while trying to bump start a bike... is the on/off switch in th on position and the key turned on while trying to bump it? It's amazing how big of a fool you feel like when you're running down the driveway, huffing and puffing and look down and see the key is off...

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post #17 of 40 Old 11-06-2008, 03:49 PM
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go to walmart and for 18 bucks they have "battery tenders" throw one of those babies on there at night and it will be good as gold tomorrow...

and let us know if you got home ok.... its a long drive but i got jumper cables..



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post #18 of 40 Old 11-06-2008, 05:19 PM
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anyone know if he made it home???

zookmor??



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post #19 of 40 Old 11-06-2008, 08:22 PM
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brahmadawg got home thursday around 8:45pm

'04 919---40k----6/18/10 SOLD

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post #20 of 40 Old 11-06-2008, 08:40 PM
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I've jumped started more bikes off a running car than I'd like to remember and have never had an issue.

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post #21 of 40 Old 11-06-2008, 11:59 PM
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Quote:
Originally Posted by RC51_CBRXX View Post
I've jumped started more bikes off a running car than I'd like to remember and have never had an issue.
Still, not a good idea. Best to push start if possible

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post #22 of 40 Old 11-07-2008, 03:58 AM
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Quote:
Originally Posted by zookmor View Post
brahmadawg got home thursday around 8:45pm

Good Deal...Glad to hear he made it home ok


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post #23 of 40 Old 11-07-2008, 04:30 AM Thread Starter
 
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ya i made it home last night around 2045, i jumped it off of a running car , because the car battery didn't have enough juice for it to start with out it running. i got it jumped and let open the choke and let idle for about5 min while i got my gear on, then got on it and ran it the 53 miles back home, had a couple of scares and it almost shut off a couple of times at the three traffic lights that off course had to be red, but once i got back to my town everything was running fine.hopefully when i go to start it this mourning iwont have any problems, thanks for the help guys and gals.

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post #24 of 40 Old 11-07-2008, 07:02 AM
it's a honda, not a bmw
 
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How does a car battery that can't start a 919 ever start a car?

I jumped my bike with a half dead marine battery and a chunk of romex, no problem, bikes don't need the amps like a larger car starter would. Although the romex was probably a dumb idea and I wouldn't recommend it, all I needed was to get that fuel pump running and 3 seconds of cranking.

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post #25 of 40 Old 11-07-2008, 07:28 AM
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Quote:
Originally Posted by brahmadawg44 View Post
hopefully when i go to start it this mourning iwont have any problems, thanks for the help guys and gals.
How did it start this morning? Did you get your hands on a battery tender?


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post #26 of 40 Old 11-07-2008, 07:33 AM Thread Starter
 
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well i did not have a battery tender but it did start right up, it as at zookmors house and he is going to put it on the tender while i am out of town this weekend.

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post #27 of 40 Old 11-07-2008, 07:33 AM
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It was most likely cheezie jumper cables. Or poor conections. I ran a 10g wire from my battery up under the seat and but a wire nut on it so I could connect a charger or cables. After messing with that stuff for a while I put a new battery in. The old battery was just marginal enough to tick me off. The bike ran way better with the new battery.

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post #28 of 40 Old 11-07-2008, 07:41 AM Thread Starter
 
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any one know of a good cheaper battery?

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post #29 of 40 Old 11-07-2008, 07:56 AM
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There are all kinds, but for the money and hassel free long life just buy a Yuasa. There's a reason honda uses them. I know it's hard to part with a hundred bucks for a dang battery but it is worth it.

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post #30 of 40 Old 11-07-2008, 08:42 AM
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Quote:
Originally Posted by brahmadawg44 View Post
any one know of a good cheaper battery?
Cheaper battery = Annual battery replacement

I'd rather pay $100+ once every 5 years than shell out $50/year for some cheapy.

Everyone I know who has gone the cheap route has always had some kind of battery problems in a short amount of time.

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post #31 of 40 Old 11-07-2008, 08:52 AM
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Congratulations on making it home!

Batteries: I only use Yuasas after having some crappy bargain brands. Having said that, if you leave your battery in the bike and it freezes every winter, just buy a cheap one because even a Yuasa will be crappy after freezing. Basically, if you find yourself buying a new battery every spring, get a cheap one or make sure you take the battery out over the winter and put it somewhere warm with a battery tender.

Jumpers: I have boosted bikes from running cars because the non-running car wouldn't turn the motor over fast enough. Might be cables, might be the connection (moving the ground clamp of the booster cables closer to the battery seems to help) but sometimes they need a running car. I know the charging system of the car can theoretically supply too much current for the charging system of the bike to handle, but I think you would have to rev the car motor up to do that. I am not recommending this but there have been cases where I was trying to start a bike in near-freezing temperatures when trying to start it with the car non-running would have resulted in a car with a dead battery.

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post #32 of 40 Old 11-07-2008, 09:30 AM
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the charging systen of a car puts out 13.2-14.5 volts. the bikes electrical components CAN handle that voltage.

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post #33 of 40 Old 11-07-2008, 10:12 AM
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Quote:
Originally Posted by beardlessj View Post
the charging systen of a car puts out 13.2-14.5 volts. the bikes electrical components CAN handle that voltage.
you are right sir... but i have had bad things happen jumping from a car.. burned up voltage regulator...

who knows it could have burned up pre jumpstart.. but i like to blame the car...



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post #34 of 40 Old 11-07-2008, 11:00 AM
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A friend of mine once bought an 01 CBR600F4I that a kid owned. The kid jumped the bike with a car, and did damage the regulator.

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post #35 of 40 Old 11-07-2008, 11:22 AM
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The only time I damaged my bike jump starting it was when I F'ed up the cable polarity.

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post #36 of 40 Old 11-07-2008, 11:52 AM
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Quote:
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The only time I damaged my bike jump starting it was when I F'ed up the cable polarity.
never did that



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post #37 of 40 Old 11-07-2008, 12:21 PM
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Quote:
Originally Posted by barton664 View Post
you are right sir... but i have had bad things happen jumping from a car.. burned up voltage regulator...
+1, the voltages are very close to the same but as said before the rectifier/ regulators are not made to handle the type of amperage a cars electrical system produces. I learned the hard way myself.

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post #38 of 40 Old 11-07-2008, 12:39 PM
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I bought one of these scorpion batteries this past spring. It's never sat more than a week so I don't know how it will last through the winter. $57 shipped isn't to bad for an Absorbed Glass Matt battery.
http://www.batterystuff.com/power-sp...y/sYTZ10S.html

The same place has the yuasa for $109 shipped.
http://www.batterystuff.com/power-sp...ry/YTZ10S.html

I know that there is a difference but I figure if I keep the cheap one on a battery tender it will last OK. We will see...

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post #39 of 40 Old 11-07-2008, 01:33 PM
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Check out batteryjack, $30

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post #40 of 40 Old 11-10-2008, 07:23 AM Thread Starter
 
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well the next morning it started up good and it sat on a battery charger for about 24 hours and have had no problems thus far

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