starter

So... My bike sat for about a month. I was going to change the oil but I can't get it started. There is no kick start so that sucks. When I try to start it, it makes the correct noises for the first few tries, then sounds like just a click or a half butt attempt. The side where the battery is...

LONG STORY SHORT Drove 4 hours to desert, Smoked some good stuff, stupid me forgot keys (ignition starter only). My buddy knew how to hotwire the bike so even stupider and pissed off me decides to let him do it. It worked without the key. THE QUESTION IS: Am I able to reverse the damage done...