Put new spark plugs in my Sporty today. When I pulled the stock plugs I noticed that the plugs were "frosted" white. It was like you sprayed them with some sort of powder underarm deodorant. Not a fluffy build up or anything just a white color on the exposed threads (about 1 1/2-2 threads) and the electrodes themselves. Is this normal? Maybe the bike is running a little lean? I have SE II muffs with the baffles removed but nothing else is altered. I haven't noticed any performance problems except a little (very little) loss of power on the very bottom end form the muffs. Had a little pinging last Summer on a few high speed passes. Other than that, no problems.