It’s not only the reed to carb gasket, that hole has to be clear up through all the gaskets and plates until it gets to the pump. If you put any one of those gaskets on backwards it will block the hole.
Hold your hand over the carb intake and crank the motor if it doesn’t draw fuel there’s something wrong.
FAA certified jet engine and aircraft technician,
Nicholson Speedway class champion 2001,
Yamaha KT100 Service Center,
41 years karting experience