ludi

How is everyone? I have a 2005 Yamaha 650 V-Star and just finished putting in a new battery. I don't know if I am in right place to ask this question but my bike won't start untless I have the throttle pulled out. Now it will start if I am holding down the start button and revving it up at the same time. If I let go of the revving part, the bike dies. Any help is greatly appreciated.