1972 750 Interstate Resurrection

So I painted my barrels yesterday. While inspecting the depths between the fins looking to see if I want to use an artists brush to touch-up areas that did not receive paint I saw this. I have seen this before but sort of forgot about it. Not a problem but just a curiosity. What the devil is that?


1972 750 Interstate Resurrection


With a probe like a pencil I can reach in there and wiggle it sidewards. It extends maybe 2.5" vertically between the cylinders. There are two of them in there but only one sticks up where the head can be seen. Has to have been cast in there during manufacture.

1972 750 Interstate Resurrection


Weird sh** like this just puzzles me.
 
The barrel was possibly in a box of bits in a corner, and a screw fell in there.

Or, it's a rare tuning tip that's not documented.

Probably the first guess...

One of them might be a guess generator, and the other one is probably a question extractor. Seems to me that both are working...
 
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