I own a 93 katana 600 and have recently been having problems where the bike shuts off on its own and the headlight as well as the tail light shut off too. The neautral and oil indicator lights will come on but the others will not. I believe I have an ignition switch problem with the bike. Does anyone know if this is true? and if so, ive noticed that the ignition switch is held on by some break off bolts, any suggestions on removing those? drill them out? thanks for any advice.