Thanks for all the info guys

So, you measure from the lowest part of the float (the side of the float that actually floats on the fuel) to the surface of the carbie that the bowl mounts too ?
At this measurement (13mm), the little tappered plug needs to be blocking the flow of fuel.
Is this correct ?
If so, how hard should the the tapered plug be resting against the the gallery ? Just resting or fairly firm ?
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