Arrgh. So, I'm doing an oil change after adjusting my valves, and I notice that the protuberance on the oil pan that shields the drain plug is partially broken off. I don't recall casing the bike on anything, but, apparently, I did. Now, if it were just a matter of removing the oil pan bolts and dropping the pan, I'd replace the pan. Of course, nothing is that easy on the C-14. To drop the oil pan, you have to remove the exhaust and the radiator, which means removing all the plastic, which I just did for the valve job. I'm not doing it again. My drain plug is just going to have to live dangerously. If I ever need to remove the radiator or exhaust for some other reason, I'll take care of it then. However, if anyone has any ideas for how to provide some protection for the drain plug short of replacing the pan, I'm open to suggestions.