Idle problem

[Walt]

A couple questions that might possibly be related. I rebuilt my carbs and since back together the bike idles wayyy to fast. I have the idle screw backed off with not success. I have been told that it's possibly a vacuum leak but haven't found that yet. Also, on the bottom of one of the carbs there is an outlet on the cover of a diaphragm. Is there anything that should be hooked up to that? That's one of the things I didn't make note of when I took things apart!

 

[Loose Chain]

Yes it could be a vacuum leak, but there is other things to look at. When you had the carbs back together on the bench were they all opening and closing properly? Is one carb not closing all the way possibly? Are they in sync? One carb staying partially open will give you the same symptoms. Are the throttle cables adjusted properly? As for your picture, are you talking about the float bowl drain on the bowl?