Z1OwnersClub GB

hi all come to put my 73 z1 carbs together after a lay off.do the 73 carbs have a o ring that goes on the thread of the choke plunger brass cap,cant find them and it doesnt show them on the schematics.
cheers

From my recent research in to Z choke plungers for my choke seat replacement service I do know that the Z1 didn't use the O ring.

ok thanks