A BIT LATE NOW,NEVER EVER ADJUST FLOAT SETTING,IN MANY YEARS IN THE TRADE I HAVER NEVER DONE IT.I THINK THATS NOT YOUR PROBLEM SOUNDS LIKE CARB NOT CLEAN ENOUGH.HAVE YOU TRIED HOLDING UP CARB WHILE FILLING THROUGH PIPE AND TRYING FLOAT UP AND DOWN WITHOUT BOWL ON,TO SEE IF FUEL COMES THROUGH ,NOW ADJUST BY EYE.HOPE THIS ALL MAKES SENCE
Hadnt tried that perhaps should not have adjusted in first place as seemed to be be way to high so will have another play and get it back to where it was. Cheers was hoping someone might have service manual with correct float setting to start with. Cheers