Thanks for your replys and help. I took the needle out of the carby and it seems to have ridges worn to the top of it. I suppose this could be contributing to the fuel leaking problem. I have another needle from a spare carby which looks much better so I will try this one. Also the float lever seems to be much higher than 3/16" so will adjust this as well. I also have a Villiers carby which has the same connections as the original Victa Special carby and of similar age. If all else fails I wonder if I should try this carby on it?
Bought this mower just recently and was hoping to get it going. I have 3 of these mowers now, one of which is a runner (but not very well). The other one has a seized engine and is currently in pieces. Hope to do some restorations on these in the future.
Cheers and once again thanks for your help!