I just bought my first bike. When I got it the guy who sold it to me started it , but only with jumper cables. He said the batt was completly dead. So I took it home. The next day I got a batt, my pops was connecting it and he connected it backwards. I took it off bad conexted it the right way. So now there's now power to the bike. No lights nothing. Did he blow something by connecting it that way?