loose spring in carberator bowl

RJSw/NAA

New User
I was cleaning out my backup carb because the one I am currently using leaks gas. Before I swap them out, I wanted to make sure this one was clean and ready to go. While carrying it over to the compressor hose the little spring fell out. Just so happens my IT shop service manual is missing those pages due to a bad collation job. Before I drive to TSC to get the manual replaced with a complete copy, thought I would post here. Anyone recognize that little one inch spring?
 
Do not know that it would be an inch long but the only spring I can think of that would just fall out of a carb if you did not have it in pieces would be the choke butterfly flapper spring
 
A picture of the spring might help

The parts diagram for the NAA carb shows 5 different springs:

Carburetor Main Adjust Needle Spring
Carburetor Idle Adjust Needle Spring
Carburetor Throttle Lever Adjusting Screw Spring
Carburetor Choke Shaft Spring
Choke Flapper Valve Spring

The first 2 are installed ahead of each of the needle valves, so if the needle valves are in place, it's unlikely to be either of these. The next one is on the exterior of the carb on the throttle linkage, so if it "fell out" I would guess it wasn't that one. The next one is also on the exterior of the carb, on the choke shaft, so the same probably applies about it not having "fell out". The choke flapper spring, which old already mentioned, is in the throat of the carb, so it seems to be the likely suspect.
 
some carberators have a float support spring and bracket in the bowl.The choke plate spring has a hook on both ends.
 
(quoted from post at 20:27:21 10/08/12) some carberators have a float support spring and bracket in the bowl.The choke plate spring has a hook on both ends.

According to the parts diagrams, the float support spring was only used in the carbs for the 172 ci engine from 1/1/1955-12/31/1957. Seeing as how the NAA had a 134 ci engine and was only made in 1953 & 1954, I figured that spring didn't apply.
 
Choke flapper valve spring it is. And I also know why it fell out. one of the hooks on the end broke off. Curses.
 

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