So i just picked up a 1978 Kawasaki KZ650 SR from a buddy for only $300, only problem is he lost the keys about 2 years ago. so now i cant open up under the seat to get at the battery or actually just remove the seat, cant open the gas tank either. So since im a n00b i thought i'd ask you guys? I figured i'd just drill it out, bad idea? Just tell me what you guys think, and thanks in advance.