New to the forum...new to dirt bikes in general... I have a WR450 and was starting some mods tonight. Got the AES kit installed and some other stuff. I removed the spark plug to see how it looked and was surprised to see lots of rust around the nut part of the plug. I've had this bike about 6 months... I was checking out what looked like a drain hole at the bottom of the freakin deep spark plug hole. I assume it lets in a much water as it lets drain. Does anyone plug that hole while you're riding so no water gets in? Seems like it does more damage than it helps. BTW, what tool are you guys using to remove the spark plug. I was a little challenged with a typical 5/8 with long extention. Any guidance for a newbie is appreciated!