so about a month ago i went out and started my bike. it had been sitting on a charger. started no problem. i hooked the charger back up and let it alone till i was ready to ride. this weekend i went out, unhooked the charger, tried turning the key and got nothing. no lights or anything. proceeded to jump the bike, which worked. but as soon as i disconnect the jumper cable the bike shuts off. WHY? any suggestions? thanks in advance!

 

How old is battery?

BTW, how are you jumping the battery? If using an automobile, never have the automobile's engine running.

 

yes using a car. not running the engine. was told that before by a friend but never knew the reason

 

battery is a year old at the most

 

Check your terminals for corrosion.

 

Check positive and grounds for any loose/corroded wires

 

ifi have loose or corroded wires why would it work with the jumper cables hooked up? i feel like its a battery or alternator/stator problem...

 

the alternator/stator is not your problem.