Thanks for the replys. It may have been a blueish color I really didnt pay that close attention. I have the 110 in a H9 Sukhoi so it is my belief that it is not the cowling. I will pull the plugs again and see how they look. My biggest concern was that while one plug was light tan, the other was black and oily. If that is the case again then it would almost have to be a problem with either the ignition or an air leak no? I mean, other than that what would cause 1 cylinder to run richer/leaner than the other??