I noticed on my bike it appears the pipe was broken or cut right behind the rubber gasket. I am pretty sure it was supposed to be one piece. no way and hell will it seal the way it is. last night when reasembling it I put copper gasket in. then had this steel piece with a rubber gromet about 3/8 of an inch long that meets evenly with the pipe. no way is steel to steel going to seal... I noticed it had an exaust leak and saw exaust coming out of there when riding before it melted the top end, but didnt even think about it (was having to much fun riding) maybe that caused my lean condition and is why I ruined my top end? I may try to weld it today and make the exaust seal before trying to tune the jets.