Hey guys, a friend of mine has a 09 zx6r with a two brothers exhaust and a pcv power commander, here recently in the past few months it doesnt want to stay running all the time. When the bike gets warmed up it starts idling rough and eventually dies. We were coming to work tonight and just in a half mile stretch it died four times. Do any of you guys have an idea of what may be going on or should he just take it to a shop? Any advice is appreciated.