Nikki carb spring
 

So I just took my first crack at rebuilding the carb on my 79. I feel like I did alright... but I've got a spare part. Do you guys have any idea where this little spring goes?
https://cimg2.ibsrv.net/gimg/www.rx7...8105012487.jpg

Maybe you swept the floor too good. I nave 3 first gen. carbs and none have such a spring. I'll try to attach a pertinent file.
get your manual here: Foxed.ca - Mazda RX-7 Manuals

It does not appear that the file attached. You can get it at the link mentioned before. It is the 79-85 carb. manual.
good stuff.

Interesting. I have no idea how it couldve found its way onto the work table i was using but it doesnt really look like it belongs anywhere on the carb. Thanks man.

It looks like a pen spring...
There are a few small springs in that carb, like the fuel cut valve, look at the exploded views in the manuals on foxed.ca