i am looking to buy a yfz 450 on craigslist and the guy says everythign is fine but the starting relay is broken. he says he can hear it buzz. i am asking about this because i dont see why a broken relay would be buzzing and i am wondering if this is just a way of him trying to cover up a much bigger problem like a siezed top end. what could this be? could it really just be that relay? i am mainly confused because of how cheap a relay is and the fact that he wouldnt just put in a new relay and have it run perfect. he also has it up for really cheap. any help is appreciated