When I tried to start the ATV I noticed that that battery was weak and as the engine was slowly turning over it eventually stopped and you could only hear a click when you hit the starter. I replaced the battery as it tested bad: when I hit the starter all I get is a loud click but the engine does not turn over. The same click that I heard when the battery ran down. Something like a solenoid click on a car. Any ideas? The new battery is fully charged.