01 mastiff. went to start bike. will not start. battery on tender so battery is good. bike cranks like crazy with no problem. got plenty of gas getting to carb. pulled each plug one at a time and verified spark. there is a little black box that is sitting on top of battery with a little red light. all wires are connected and seem good. the red light is not on when key is on or when bike is cranked. if i pull off center console, are there lights that might help? any suggestions what i need to check and what the hell is that little black box on the battery.?