Have a 1987 Honda CRX DX. The car has spark and fuel. The carburetor was repaired/rebuilt with a rebuilt kit to include diaphragm, o-rings, and gasket. The carburetor was also cleaned. We have also replaced the fuel filter and fuel pump.

Now, the car starts but will not stay started. It runs for about 15 seconds, idles up to 3000 rpm then dies out.

Has anyone had a similar issue? Not sure what to look at next.

Thank you in advance.