Re: Will not return to Idle when driving

Posted by Re-run on Aug 16, 2011; 8:19pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Will-not-return-to-Idle-when-driving-tp3258640p3259775.html

Air leaks are a common cause. Many times it is the manifolds between the carbs and engine. They get really hard and do not seal well or develop cracks.
My 78 did this after a long ride. When normally warm, it idles about 1100 or so +- tach error. After a couple hours, it would idle at about 1500 for a bit. So no big deal. Yours though may be from hard manifolds.