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just curious about the answers I'll get.

2007-09-05 12:00:54 · 17 answers · asked by Just a guy 4 in Cars & Transportation Motorcycles

in idle, not in gear. dang.

2007-09-05 12:09:00 · update #1

Ibred, did you do it once?

2007-09-05 12:18:51 · update #2

17 answers

Not recommended. Jump off the car battery when the car is not running, instead.

2007-09-05 12:36:34 · answer #1 · answered by Anonymous · 8 0

You can do it if both are 12 volts. A small battery does not have more volts than a bigger one, it is only capable of supplying the same volts at a higher amperage or for a longer time than the small one.
If you have a cup with water at 40 degrees and a drum with water also at 40 degrees the water in the drum and the water in the cup are the same temp but there is more water of 40 degrees in the drum so you can do more washing with it but it will not burn you more than the cup's water. If you put a pipe into the drum and a pipe into the cup the stream from the drum will be stronger but the temp will be the same as the stream from the cup.

It is however always a good thing to make sure why the battery is flat before connecting a high amp battery. A car's battery will normally be strong enough so you do not have to start the car to jump a bike.

2007-09-05 19:52:51 · answer #2 · answered by Anonymous · 0 0

Don't do it with the car running, the alternator produces to much amperage and can fry the voltage regulator in the bike. You can safely jump the bike with the car battery as long as the car is not running, just remember on a motorcycle connect the negative cable directly to the battery post and not to the frame of the bike, most motorcycles have a complete ground wire system in the wiring harness and only one or two "light weight" connections to the frame, (it keeps electricty from going through the steering head and welding the ball bearings to there races) and if you connect the cable to the frame it could cause the wires to melt where they connect to the frame since they are not made to handle that much current.

2007-09-05 21:44:21 · answer #3 · answered by Greg P 3 · 2 0

First try pushing your bike to a run, 3rd gear and the clutch in, ignition on. When you are running as fast as you can pop the clutch most of the way and get ready to pull it back in when your bike starts. If you bike normally starts easy this should do the trick just fine.

Did this with a parking lot full of onlookers last weekend. I'm sure glad the best case scenario happened and not the worst.

I agree with doing a jump with the car not running.

2007-09-06 08:24:33 · answer #4 · answered by ninebadthings 7 · 1 0

no that is ill advised there is no motorcycle charging system designed to handle the amps produced by a car alternator.....as soon as the regualtor gets wind of that amprage generated by the alterantor it will overload most solid state motorcycle regulators...since you did not mention the bike or even the car in question im just going to guess. if your car is newer then 72 your charging system will be more then 30 amps the safe number to use when jump starting a bike dead enough to require a jump...this goes for those roll around jump boxs...and dont let people tell you its safe because your battery makes over 100 amps stored energy is less damaging to your system then generated energy

2007-09-07 23:37:50 · answer #5 · answered by Ronsoy 2 · 0 0

Yes. I have. But I've also jump started it with a non-running car. The latter is recommended for various reasons--some of which are well cited above. Also, I recommend grounding on the negative battery post and not the frame.

I like the idea of using a "running" car to pull the bike. :-) I suppose that's another way of doing it.

2007-09-05 23:29:06 · answer #6 · answered by diesel_pusher2 3 · 1 0

I agree with ninebadthings. Left my newish FZ6 with the parkers on all weekend, and it was flat as a tack. Fortunately, I live half way down a hill; but it took two goes to 'clutch-start' it. Not fun, pushing it back uphill again after the first attempt, but it worked.

I have heard of people putting the bike on a rear-wheel stand, and spinning the rear wheel as fast as possible before popping the clutch; but I don't know about that.

2007-09-06 11:15:16 · answer #7 · answered by AndrewG 7 · 0 0

Well, It isn't recommended, however, you wont need to have the car running!!!

It can be done, I have done it - but it is NOT a recommended way of doing things. but if you're stuck - then give it a go.

Also worth taking into consideration voltage, dont do it unless they're both the same voltage.

Also worth taking into consideration age of the bike etc. A lot of bikes have a lot more sensitive instrumentation in terms of electrical systems

2007-09-05 22:35:36 · answer #8 · answered by fxrnjustaskin 1 · 1 0

The car is 12 volts make sure the bike is also, be careful as the jumper cables are not made for bikes and you will short to frame.

2007-09-05 19:14:24 · answer #9 · answered by Ibredd 7 · 1 0

Do it without the car running.It will not hurt anything.The bike will only use the amps it needs.It's not like you can overdo the amps.As long as both are 12 volt you will not have any problem.

2007-09-05 21:36:44 · answer #10 · answered by bill b 5 · 2 1

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