I honed each cylinder for about 30 seconds each the walls were good meaning no lines going up and down so I just thought to hone a little just to be safe but I didn't hone it that much to mess it up. I't was running fine until I took it down a street and reved it to like 8000 after that it started smoking but when I drove it the first day it was alright no smoke at all and I was driving around off the header no exhaust