My 2001 yzf600r with about 45k miles on it is like my baby and I've been posting question on here like crazy trying to find help with this idle issue its been having. I just bought a carb sync kit and did that and oh my i feel the difference and it fixed my vacuum problem i was having which i thought the problem was. I adjusted the idle adjust screw and seems to do nothing but if i turn it up too high it will just rev at like 8 grand then i turn it just barley and it idles for a second and dies out. I noticed IF it ever does idle normal the bike is always on its stand and leaned tot he left obviouslly but the second i stand it upright boom...dead I dont get it! anyone have an idea and/or a website I could reference to?