i beg to disagree and correct me if i am wrong but during idling the temp inside the combustion chamber falls, so the gasoline is not sufficiently vaporized. this would cause combustion to become unstable if the carburator were not designed to prevent this by supplying more fuel in order to make the mixture richer. normally, in such cases, this extra supply of fuel causes the air-fuel ration to become richer, about 11:1... thats why they do the emission test on gasoline engines on idle, when it is where the vehicle is producing more carbon monoxide and hydrocarbonsOriginally posted by ghosthunter
the fuel ratio does NOT change radically from 14.7:1 when you are moving or at a stop with the engine idling.




LinkBack URL
About LinkBacks







Reply With Quote


Bookmarks