I am trying to order the YZ needle from my dealer and he can't find the NCVQ needle that everyone speaks of. Does anyone have another part number? I am trying this needle in addition to a richer pilot, main and open airbox lid on a like-new 01 426. It has a bad bog off idle with any blip of the throttle. By the way, looking for a replacement for the stock exhaust. Anyone have a YZ exhaust collecting dust or any other performance exhaust? Thanks in advance for any help. I am new to this forum and the WR. Hoping to make it a lighter woods/track bike and give my XR650R a break.