So I recently sheared the head off the coolant drain plug. I've looked around the internet and these forums and saw suggestions on how to remove the remainder. I've only seen general suggestions of using a reverse drill bit or easy-out kit. I was wondering if anybody knew what a good size drill bit and screw extractor to use. The smallest one I could find was 7/64", but I don't know if that is the right size. Also, once (if) I get the broken bit out, I need to replace it. What is the proper size bolt to replace it with? Lastly, is it just the bolt I need to replace or is there some sort of gasket also? This is my first motorcycle and I'm only just getting into trying to learn how to fix it myself. Any information is appreciated!