Part # 21272 ( # 1 & #2 refering to cold start and Idle ) is your idle adjusting screw! Note there is alote more to this carburetor as far as adjusting and it is highly recommended to adjust according to Manufacturers specs or with a ( tune-Up ) section of a good service manual. . . Listed below is schematic of carb. and then the link to the funstuff and tech info/part numbers . . . Included also are some great Reference manuals to keep that Toyota of yours running great ( Thanks Jeff ) http://www.toyodiy.com/ http://www.toyotaminis.com/forum/showthread.php?t=1723