carb issue 1978 CB750K please help

Posted by subtlySimple on May 12, 2013; 9:04pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/carb-issue-1978-CB750K-please-help-tp4040678.html

So for some background. 1978 CB750k. picked it up at the end of last summer it ran until the regulator went out
 I had to replace it. Over the winter I switched to a 4to1 exhaust and replaced all the plugs, fuses and cleaned the carbs and changed the main jets to a 115 . My problem now is that the engine is popping back into the carbs at idle and high rpms. It will idle but will die if I twist the throttle too quick.

I have been in and out of these carbs with a fine tooth comb. Used copper wire on all the circus. Replaced all the needles and seats.

Any help is much appreciated. I am getting far too frustrated.