so my bike sat for about 3 months and i must have left the key turned on by accident and killed the battery. i got a new battery hooked it up and everything looked fine, pushed the start button and i heard a click and then everything died. the battery wasnt fully charged so i put it on the tender overnight. tried again today and still nothing. the battery has 13.4 when dissconnected and 3.4-5 when connected to ground. I put a charger on the connected battery and i get intermittent power. tried a new ground wire still nothing. checked continuity in all the fuses and everything is good. any help?