This evening I was riding my farm quad, and went to back it up, backed up, shifted into 3rd, then the bike stopped. I attempted to shift it back through the gears to get it back into neutral, so it'd start again, and it wouldn't even show signs of coming back into neutral. I'm really not too fond of leaving it out in the weather, and I'm not sure what I can do. The battery seems to be okay, it just won't budge. I don't know a whole lot about bikes, does anyone have any suggestions?