He got a new needle and the clip is in the middle. He removed all the crap from the airbox and installed a new intake. I don't think he tried the 175, but I'll ask. The plug looks a grayish color. He's running at about 1000-4000 FT between 50-80 degrees. He Says the bike runs like a raped ape at WOT, but it has a dead spot when you first crack it open, and pops when you let off. Since he went to a richer pilot and it helped, I figured a even bigger pilot would help more. However I know bigger is now always better.