Hi All,
Below please find attached a drawing of the tool I made up to set the carb heights on my CB750F1.
I made this from 1mm plastic sheet, but could also be made from aluminium or cardboard just as easily.
For best results measure with the carbs on their ends with the float tab just resting on the needle valve.
Measure across the centre of the floats using the cut out on the bottom of the float chamber as your reference face.
For reference a picture of the type of carb is also attached.