running really rough

Posted by trikeboiler on Feb 04, 2017; 3:21pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/running-really-rough-tp4061919.html

Hi all, little bit of help needed please. eventually got my cb750kz 1979 to fire up, she had been stood for about twenty years, when I got her I removed the carbs and cleaned them through, replaced anythingthat looked suspect, new intake rubbers and clamps, new plugs, filters and oil, and new cdi units ..Now my problem is that she fires up quite easy but I have no control on the revs, it runs at about 3thousand revs then dies and stops, I can then start her again and keep it going as long as I keep it above 3000rpm. now I didn't balance the carbs nor have I checked the timing yet as both procedures ar a bit tricky when I cant get her to tick over. Has anyone got any ideas what the problem could be. Oh and its only firing on three. Thanks.