Float needle was in two pieces , the tip was stuck in the opening , Pluged it I guess . New stuff ordered for all the carbs .On multi cylinder bikes just one carb not working can prevent the engine running properly...I know from experience.
So the offending carb needs to be investigated. The float needle may be sticking/need replacing....any evidence of a ring around the tip indicates it needs replacing. The common fuel rail may be blocked. pretty much thats about it....there are only a couple of things that would prevent a carb bowl filling I cant think of any more than mentioned.
Thanks again .