Wondering why some people up here in Vancouver B.C. area are saying that the new 05 WR 450 doesn't require jetting and it doesn't run to lean from the shop. Is there a difference from a wr purchased in California lets say? Should I just ride it after the free mods have been done and not worry about jetting the bike? Could the basic carb adjustments be all it needs? If nothing at all. Also, is the grey wire just for bikes in the States. I've heard here in B.C that the shops don't cut it.