RE: cold air = lean?

Ivo /
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Cold air is leaner, but just a tiny little bit. Because of the cold, the air is denser and more air can go through the carb while the amount of gas mixed through it wil stay the same. Some high-performance supercharged cars have something called an intercooler, this cools the air just so the engine can take in more air, the cars carburettors are adjusted to perform propperly with the cooler air. Also, when the engine of your bike is still cold, the air will not be warmed up by the carburettor as it passes through and the mixture will be much too lean, that's why the carb has a choke, so you can block the airflow patially to make up for the larger amount of air coming through the carb. As the engine warms up the carburettor, the carburettor will warm up the air passing through, so when you're driving in cold weather the mixture will be a little leaner but not much. This is also the answer to why engines have trouble starting in cold weather.

This single post is part of a larger thread. Start from the top or view this post in context.
Subject Written By Posted
  cold air = lean?Topic by: Nick Nick 11/29/00 12:52PM
  RE: cold air = lean?Re: Ron Brown Ron Brown 11/29/00 01:17PM
  RE: cold air = lean?Re: Ivo Ivo 11/29/00 05:27PM
  RE: cold air = lean?Re: mike mike 11/29/00 09:08PM
  RE: cold air = lean?Re: Fred Fred 11/30/00 02:22AM
  RE: cold air = lean?Re: Ron Brown Ron Brown 11/30/00 11:02AM
  RE: cold air = lean?Re: Ivo Ivo 11/30/00 04:03PM
  RE: cold air = lean?Re: Fred Fred 11/30/00 05:55PM
  RE: cold air = lean?Re: Ron Brown Ron Brown 11/30/00 05:57PM
  RE: cold air = lean?Re: Fred Fred 11/30/00 06:36PM
  RE: cold air = lean?Re: mike mike 11/30/00 07:29PM
  RE: cold air = lean?Re: Fred Fred 12/01/00 03:50AM
  RE: cold air = lean?Re: Ivo Ivo 12/03/00 06:40AM
  RE: cold air = lean?Re: mike mike 12/07/00 09:22AM
  RE: cold air = lean?Re: Ron Brown Ron Brown 11/30/00 07:48PM
  jettingRe: Fred Fred 12/01/00 02:27PM
  RE: jettingRe: Ron Brown Ron Brown 12/01/00 04:59PM
  RE: cold air = lean?Re: tim tim 11/30/00 11:00PM

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