Q: Can I use the pointed check weight above the checkball?
A: No. The checkball requires a rectangular checkweight. Otherwise remove the ball and use only the pointed weight.
Q: When I disassembled my carb, there was no checkball in the accelerator pump circuit, only the brass weight under the discharge nozzle assembly.
A: If the check weight has a pointed end, it acts as a checkball and weight in one. No ball is necessary. If your AFB has a check valve near the bottom of the float bowl next to the pump well, it does not use a checkball in the bottom of the pump well.
Carter carbs used multiple discharge setups, but they are generally interchangable.
You want 1/16” - 1/8” headspace for the checkweight to move up and down in the discharge port.
The checkweights are brass and can be ground down if needed.
If you’re in a pinch, a second checkball will typically do the trick in place of the weight or spring.
Test by putting fluid in the accelerator pump well. Hold down either the check ball system, or the check weight system with a brass drift punch. Push the accelerator pump down the well. You should feel a bit of pressure and little if any fluid will come out of the main discharge.
If you get no pressure, then try the other setup (check ball, or pointed check weight). If still no pressure use a brass drift punch against the check ball, or weight and tap gently a few time to seat it.