I'm about halfway finished rebuilding the carburetor on my f100, 300 straight 6. Problem is that there is a tiny ball bearing that is supposed to go somewhere, I think, but I can't figure for the life of me where it's supposed to go. The rebuild kit assembly page isn't any help at all. can anybody help me figure this out?

 

look where the accelerator pump is. There is usually a ball that acts as a check valve there. Not sure what carb you have...I'm thinking of a Holley but it's the only place I can think of for a ball.

 

This is a picture of a typical holley acc pump ball check.

 

I just rebuilt my yfa last weekend. I used these videos to help me out. Carter YFA Carburetor Rebuild Part 1 of 4 - YouTube

Carter YFA Carburetor Rebuild Part 2 of 4 - YouTube

Carter YFA Carburetor Rebuild Part 3 of 4 - YouTube

Carter YFA Carburetor Rebuild Part 4 of 4 - YouTube

I found these videos very helpful. I had never torn apart a carb bigger than one on a honda generator motor before, and I got my YFA done no sweat. Even covers adjustments as well. This guy sells rebuild kits for all kinds of carburetors, too. Hope this helps.

 

Look at this diagram, it shows the check ball and the check weight.

There is a plastic hose that connects the accelerator pump diaphragm housing to the orifice where the accelerator pump check ball and check weight goes into.