Aloha, Im new to the forum and just purchased my 72 Z. The only problem I have with this Z is where the linkage that goes into both SU carbs. They are very "Sticky" and when gas is pressed it moves very slow and returns very slow which causes it to rev high when the gas pedal is pressed and very slowly returns to normal. What can I do to loosen up the link in both carbs so that it is not so sticky? Any help would be much appreciated. Mahalo, David.