Re: 1982 cb 750F SS wont run right !!

Posted by seestheday on May 06, 2013; 1:43am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1982-cb-750F-SS-wont-run-right-tp4040266p4040298.html

If the insulators between the carbs and head were old and brittle they may work until you take the carbs off. After that they'll not seal properly.  

Can you check for a vacuum leak? Spray some flammable fuel there when it's running. If the idle goes up you have a vacuum leak and probably need new insulators.