I have a 73 Olds Omega and have recently done a complete tune-up myself.
However, the carburetor is still smoking when I drive it even though it is running and sounds smooth. Also it is starting hard in cold weather only. What could be the problem?
My first question would be to ask where the smoke is coming from. Is it coming from the air filter, or around the base of the carburetor? This could be caused from a gas leak, which should be taken care of right away, as this could cause a fire. The hard starting in the cold could be due to a problem with the choke. When you start a car, especially in the cold weather, you need a rich mixture with little to no air to get the engine running. Then as the engine warms up more air is allowed in. The best thing to do is find a shop that services older vehicles and knows carburetors and have yours diagnosed just to be on the safe side.
〉 Answered on Oct 30th, 2006 by Lori Johnson, Owner and Instructor at Ladies Start Your Engines