emulsion

Bikes been sitting for quite a while, and it didnt want to stay running unless the choke was on so i figured id pull the carbs and go thru them real good Its been a while since i rebuilt my last carbs and i may have forgotten somethings, anyhow... i ended up breaking the small brass bolt that...

Will the o rings around the tube cause a problem with a 4 k stumble when slowly rolling on the throttle, where are the emulsion tubes located in the carb ?