1972 Carburetor rebuild

[Ark Bigfoot]

I have a1972 Ford Bronco 302 V8 and rebuilding the carburetor. I got a rebuild kit and as I was taking the carb apart. I removed the carburetor choke pull off diaphram and looked at the parts diagram and it shows a spring under it. I was very careful when I removed the holding plate and did not see a spring. Should there be a spring under the rubber diaphram?
https://www.napaonline.com/en/p/CRB...y-MumgM0FUJ0tX97XVmsCw0dcVVxYcfxoCbPYQAvD_BwE

 

[Ovalis]

Yes there's a spring. Cone shaped. Big on one end, small on the other.