The Carter 2100s uses an encapsulated INTAKE ball that is located in the diaphragm housing (the mostly square housing in the bottom of the bowl that holds the diaphragm) and a square pointed brass needle DISCHARGE valve (NOT a ball) located new the top of the bowl casting. The square pointed brass needle should have been in the repair kit.

Jon.


Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
If you truly believe "one size fits all," try walking a mile in your spouse's shoes!
The Carburetor Shop