Hi, I went and rode the bike to the local WMA today, to check it out in the sand. I took it real easy, just to see, how the bike reacted in sand. I grew up riding on trails, sand etc., but that has been 40+ years. After 30 minutes, I went to pull out, and noticed the bike sputtering pretty badly. It cleared up, after 1/4 mile or so. I thought it was like dirt was getting in, through the air cleaner area, but all seems good. Then, I noticed the threads about the air box, clean side tube. Damn, if I can find it....i took some pics, and will attach them. I did see 2 duck bill stubs and 1 other tube, but nothing with a plug, in the area, that the clean side tube should be. Any suggestions, about how to proceed from here? And where the heck should I be looking, since I say, no place where this tube should reside.