white smoke....and its not the tires

[bmxmon]

The plugs seem to be getting a bit darker everytime I run it. I stopped running it right after it started smoking more, and from what i can remember then, the plug itself wasnt oily, it was the threads of the plugs that seemed a bit oily. I cant remember what kind of rings are in it, I would guess normal rings, i didnt order special rings. Thanks