SU jet assembly

[Andyhereford]

Everything going back together and all was going well when I went to try starting her up and noticed a leak from the jet assembly “tube” …the clear rubber tube inside the metallic gauze sheath connecting the bottom of the float chamber to the body of the carburettor.
Having taken the carburettor off there is a small hole at the carburettor end of the tube no doubt due to age and careless handling by myself.
Before ordering a new jet assembly do I also need to get a new needle?
Thanks for any advice.
Andy