I have a 98 foreman es that has been great until now. We put a new battery in it 2 weeks ago and now when you turn the key to the on position the display doesn't turns on. However when I connect a charger it powers up the display and starts right up. As soon as I disconnect the charger and turn the bike off it's completely dead. I've kind of looked over everything and don't see any loose wires as far as ground goes but not sure where to look. Any help is a appreciated Thanks in advance!