Each kit comes with all necessary fittings, including, if necessary, a carburetor top, a control cable and a choice of different throttles ranging from slow to quick turning. Fits stock thumb throttle to Keihin PWK 28 & Mikuni TM 28 carbs. Does not open Keihin PJ34-36, PWK35 or Mikuni TM-32-34 carburetors. Use with stock carbs requires 2 carb caps (01-0023) and 2 adjusters (01-0013). Use with stock carb eliminates TORS and stock carb caps. Requires idle kit (08-0045) when used with stock carbs (sold seperately). Warning - Disables the T.O.R.S. system and will not shut down engine in case throttle sticks open. A stuck throttle could result in uncontrolled acceleration and great bodily injury or death. This product is intended for closed course racing by expert riders only. Improper installation could result in great bodily injury or death. User assumes all responsibility for proper installation and use of this product.