ok u can hook jump box to it an it will start but when u unhook it it dies can yall help me please  

Have you tested the alternator/rectifier?  Have you tested the battery?  

Get a voltmeter, and put it across the battery. It should read about 13.6 running, and about 12.4 - 12.6 fully shut off.

Try charging the battery. If it pulls no current when you hook it up, you can figure a pure dead cell (or more). If it pulls a charge, let it go for at least 5 hours. Then try the bike again. If it immediately dies when you disconnect, it's still the battery. If it keeps running, rev the engine up slowly. The voltage should go up to 13.6 - 14.1. If it does, you just had a dead battery. If the voltage doesn't go up, you've got an alternator/rectifier problem.

Happy Trails.