vasi0011
CB750 Member
I've been trying to chase down a problem with my 1978 Hondamatic 750A running very poorly in cold weather, in the 40's or 50's F degrees. It runs great in the summer, but predictably runs terrible when it cools off in the fall. I completely gone through the carbs, with no change in the situation. I've been told that cold weather causes a mc to run lean. I've got to fully choke it to get it started, and have to leave the choke on till it FULLY warms up. It was originally from CA. Wondering if anyone has had the same problem, and if re-jetting helps. Thanks!