I did the cam swap, and finally got a chance to ride yesterday. I can't believe I waited so long to do the swap! I bought the plug to fill the hole in the head (where the decompression mechanism used to be), and it appears that I didn't seat it properly because there was oil leaking onto my header all day yesterday. The plug has an o-ring, however I wasn't able to get the plug flush with the hole. I'm sure if I could get this plug flush my oil wouldn't be leaking, but unfortunately the radiator is in the way and I can't get a rubber mallet in there. Are there any tips/tricks to seat the plug so it's flush, without having to remove the right radiator?