What have you done to that poor bike? I’m a little confused as to where your expertise lie with this bike. Please don’t take this the wrong way and you’ll get all the help you need with a little well deserved crap lol but you’ve leaned the crap out of your bike and feel it’s a simple solution fix but don’t know how to change the oil? Buellmods.com go here and download your free manual, if you already have read it please. Hopefully your oil light is a bad connection or switch but I wouldn’t ride it until I at least made sure my oil drive gear was ok or you at least know oil pressure isn’t compromised.