Jumpstarted bike with car on?

Congratulations on your new bike - I hope that you will get great enjoyment from it.

You shouldn't worry about possibly having damaged the bike, the problems that you describe are very unlikely to be related to the jump start but appear to be existing problems with the bike.

Some sources say that the car engine should not be running when jump starting but I have jump started several bikes several times with a car with engine running and not had any problem. so long as both the bike and car battery are the same voltage then the only theoretically possible problem is that the cars charging system may try to charge the battery at too high a rate. A short term connection is unlikely to cause any damage.

Looking at the symptoms - the bike starts with jump leads and stops when the jump leads are removed. This indicates that the battery is discharged and is either not getting enough charge before the jump leads are removed or is simply dead and won't hold a charge. Charging the battery using a battery charger and trying to start the bike without jump leads will show you if the battery id dead or not. If it's dead then the only option is to replace it.

With the information given it is not possible to say if the bike's charging system is OK or not. You'll find that out once you have resolved the battery issue.

As to the noise, I don't have any clear idea of the cause. I suggest that you fix the battery issue first and then tackle the noise (if it doesn't disappear by itself).

You definitly have a charging and a battery problem.Anyone who tells you it is ok to jump the bike with a running car should be responsible for the damage that CAN occur.Any way to diagnose the problem you will need a new or fresh(good) battery.With a voltmeter check standing voltage of battery it should be above the mid 12's--start the bike the voltage at idle should be 12.7-13.3 or so.If you have that voltage then turn the brights on and raise the r's to about 4500 and you should see the voltage rise to the mid 14's then drop back to the lower numbers.If it does that -it shows the rectifier is working.To do a test on the stator itself-unplug from the main wire harness and do a continuity check on the pins in the connector,if the meter goes off then the stator is bad...It all has to start with a GOOD battery.....The other noise you are talkin about is probably the cam chain tensioner not working correctly causing the chain to "slap" a little untill some oil gets thrown on it.Fix the charging problem first then tackle the other.

The battery on the bike is toast it won't even hold a charge, also the alternator, or generator on the bike may be bad as well, and not generating charge. I too have jump started many bikes with cars running and not running and as long as the cables are hooked up correctly and they are both 12v systems you should be ok. I bet the bike you bought needs a battery and a new rotor and stator (aka generator) this is bad and is what is making the grinding scraping noise.

I agree with the others about the battery being shot. take it out and run it ot the advance auto down the road and have it tested. If thats not it the alternator is gone. Most new motorcycle battery's you have to put the liquid into the battery then charge it up.

Firstly as my opinion belt makes noise at beginning. and battery may dead permanently or alternator broke

Check your main fuse. You applied 400 amps to a system designed for about 120 amps. If you are lucky, you just blew the fuse.

(It should be under the seat.)