Ok guys, this is the original thread where I was talking about my bike backfiring on heavy decel and shooting a 2 foot flame when it did. I checked the best I knew how for exhaust leaks, put some bolts back in for intake leaks(might have been leaking). A couple of folks suggested that I check my plugs. Well I did the AIS removal today and while the tank is off I removed my plugs. It doesnt look good. Especially the plugs on the rear. I took a pic of them but you cant see it really well. In the pic, the plugs are stuck in a box as they came out of the bike. So it would be like sitting in the seat. they are arranged exactly in the spots they came out of. The bottom two are the rear left and right, the top two are the front left and right. Can someone please look at these and give me some insight. The rear two were almost black but it looked like the electrode was still barely visible. Not wet, just black soot. The front left was a little black but looked way better than the rear. the one that looked the best was the front right. It was like a whitish gray. I left the tank off after the AIS removal and left the plugs out(put rags in the holes till I put em back. I am going to buy another set of plugs(same as stock) tomorrow. This bike doesnt even have a full 5000 miles on it yet. Can anyone tell me what would make these plugs look so bad. Also, can anyone tell me the gap for the new plugs so I'll have that ready. Thanks for your time, Nick