I soaked the Zenith Carb, made in Australia for 3 days on CLR... it didn't dissolve away.... Poked a wire down all holes and blew them out. The float had tobe resoldered, what a job for newbies........ Anyway bingo. it runs.....
I put a snorkel on the carb ,just to keep the dust out of the carb. It starts easily with the drill. Mowed the whole lawn, and the Zenith carb performed well. I may need a air filter to restrict the air flow.... And gotta fix a fuel tank, instead of gaffa tape..... Anyway happy to step back 60 years........ speedy
........................Keep your blades sharp......................