Hi Charles,
Actually it's the other way around - rich means enriching the air with fuel -
lean means less fuel mixed with the air. Normally, the air is a constant. So
we adjust the amount of fuel mixed with the air to obtain the proper air/fuel
ratio. Again <g> "normally" this is 14:1, 14 parts air to 1 part gasoline. At
high altitudes the air pressure is lower so the fuel air ratio changes and
becomes rich. We have too much gas in the mixture and have to "lean" it out to
get back to the proper air/fuel ratio.
Rick
"Charles D. Sorkin" wrote:
> Do I have the vocabulary correct? I have been under the impression that
> rich meant enriching the fuel with air. For instance, when trying to pass
> emissions last month, I made sure that the mixture was lean, so that the
> lower amount of oxygen would produce less oxygenated byproducts, such as
> carbon monoxide.
>
> Correct?
>
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