Just rebuild the carb on our 55.1 truck. All was well until the little brass plug at the end of the crossbar that has the main nozzle fell off. (See the plug with the red arrow in the picture below).

http://i.imgur.com/PQ8ss31.jpg

I managed to find it and pushed it back in, but now the truck won't run due to lack of gas. There are two small brass pieces that are inside the crossbar. Gently fiddling with them managed to get one loose, but the other is stuck, and in their current configuration block the air holes.

See the two brass pieces from the top down photo:

http://i.imgur.com/BPlR97T.jpg

I cannot find any diagrams of these brass pieces or how the function. Does anyone else have an idea of how these things work or had any experience in fixing a problem like this?

Thanks in advance. This is a very frustrating problem.

Last edited by Grover; 04/01/2015 4:40 AM.