The Zama cross references to a WT456-1. It's made to pump using the negative-only pulse from the intake. Check to make sure there is a 98-3226 spring inside the pump cover though. See the detailed photos earlier in this thread for what that looks like.

TKG and W8ye are both correct. In the WT-456 instruction book there's a little paper that says "If the carburetor you're replacing doesn't have a primer, the primer fitting[tube] on this carburetor MUST remain plugged". They supply a little red vinyl cap for this situation, and it only fits the brass tube right next to the L needle valve. I'd recommend plugging rather than soldering it in case you want an external primer in the future. It helps for starting, but it's not mandatory.

As for the other little hole on the carb mounting surface, it actually "LOOKS" like there's two, but one is blind. The one that shouldn't be blind is adjacent to the pump cover (that's the cover that has one screw). It must lead to the intake pipe somehow. My adapter routed the pulse path externally thru a tube, but usually in such carb's original product application this is taken care of via a molded plastic spacer between the engine head and the carb. The pulse pathway is molded into the spacer. Since you probably don't own a mold shop, try to find an intake tap for this tube a little away from the carb if you can.