How to clean up the carbon deposit in automobile throttle?

Cleaning method of carbon deposit in automobile throttle: firstly, remove the intake throat, expose the throttle, remove the negative electrode of the battery, turn off the ignition switch, straighten the throttle plate, spray a small amount of carburetor cleaner into the throttle, and then carefully scrub the deep part of the throttle with polyester rag or high-spinning non-woven fabric. If you can't reach it, you can put a rag on it and scrub it carefully. Carbon deposition is a kind of combustion substance produced by unsaturated olefin and gum in fuel at high temperature during engine operation, which can be accumulated in various parts of the engine, such as intake and exhaust system, fuel chamber and fuel nozzle. Carbon deposit has the property of oil absorption, which will make the incompletely burned gasoline become carbon deposit again, and it will become thicker and thicker layer by layer, forming a vicious circle.