You've got good flow AT the carb, right? If so, its your float level in the carb, you've got some gunk/junk under the needle valve, and/or the float isn't... floating.
to check fuel pump operation the quick, dirty and dangerous way, remove the line at the carb, spin the motor over (try not to be lighting a lucky strike at the time
It'll only take a second to tell if fuel is flowing. You only need enough fuel flowing to keep the carb bowl full when running, it really doesn't take a steady stream.
If you do have a fuel pump problem, wander into your local auto supply house and grab a 12 volt electric model. Facet brand, avail. all over the net for about 35.00 (2-4 psi)
Throw away the priming bulb, the A-4 doesn't use one. Its an inboard with a fuel pump, not an outboard.
heres the link to the carb section of moyers catalog