I am looking for a 36 or a 38 Keihin Airstyker carburetor for my 2003 cr250r I hate the 38-TMX such a PITA to keep running right so if anyone has one one please let me know. Also if anyone wants a 38 TMX and knows how to make them run right let me know I just know for the CR eveyone says go pwk or AS so I figure I will see if anyone has a used one before I spend $240 at JDJetting.