I have started this thread in hopes to generate a repository of the differences in choke knobs that were used through the years. Not including the throttle control that is discussed in a different thread. Choke knobs only. Why are 70-71 knobs only available and not 72-73? What are the differences and what have 72-73 owners done to replace theirs?

Nissan parts numbers and pictures of the knobs (front and side to display curvature and screw location) will help with this thread.

Go to this link. I think it will be a good starting point for your project. Seems pretty comprehensive.

240Z Choke Knobs Compared

Mike.

can we confirm what he ha listed as being true.

I own a 05/72 240Z that a 70-71 choke knob does not fit on (Makes sense)

But the screw threading appears to be the smaller screw ( I know I tried a 70-71 screw) then what he is depicting for a 72-73.

Can anyone verify what this site is stating?