Darryl,
Many thanks, I have found the hole in the grommet- what a relief.
I think I am describing the 'diaphram cover' on the carby differently to you. When you are describing the tubing from the fuel tank connection do you mean to the face of the carby to the front that has the white cap with the rubber bulb.
I will have a go at drilling out the broken tube and finding a bit of hard tubing.
Again, many thanks.
