Got the old girl running today though as soon as the fuel tap was turned on fuel came flowing out of the primer are there rebuild kits available for these carbies?
Not as such. NOS needle/seat sets do come up on Fleabay, and they are the main wear part for these old 3F/3L carbies.
Apart from that, the only parts which generally need replacing are the 4 fibre washers.
Repair guide download:
https://www.outdoorking-forum.com.au/pages/Victa/Carby%20Information/G3%20Carby/G3%20carby.pdfFloats do sometimes spring leaks and sink over time, but are usually repairable with soft solder after you get the fuel out.