Check out Dave Discount Motors. They stock among a bunch of other things Walbro 167-A carbs 11.11 venturi I have a number of them. They sell the primer bulb replacements as well. I pay the somewhat marked up prices on some of their items and they provide good service and delivery. A win-win situation for someone in a remote area.

I use the same carb on engines from 22cc thru 31 cc, including Homelite 25.

Getting ZAMA parts is a big PITA. Vendors of Zama parts are like hens teeth! Do search here for Zama.

Have an order in-transit as I type.. got to go and check tracking number bye.