How and where are the new lights mounted on the bike? On your new lights is that some sort of rubber grommet that might be preventing them from being grounded? Did you have stock lights on the bike and did they work? If so then the new lights most likely are not grounded. Man, I feel like I'm smacking my head against a wall...sorry, I'm a bit cranky right now. Do you understand that anything electrical has to be grounded in order for the circuit to be complete?
Mike