I pulled out my sparks about a month ago just to check em out cuz its been about 2 years since they were last replaced. 3 out of 4 were white and the electrode was almost totally burned or consumed. So I replaced them and now I pulled them again and same problem, 3 of 4 are white and I cant really tell yet if they are still being consumed real quick. Any ideas what would cause this? Oh ya and the one is almost a perfect tan colored ( a little white-ish) but still a little consumed but not as bad as the rest.