I don't recall seeing any holes in the bowl bolt. I didn't notice any jet on the outside body of carb will check that out. I do recall cleaning such a jet on Honda carb before. I was hoping to find u tube vid on it but did not
Lawn boy 2 stroke with metal carb and bowl and wind sail gov. Runs on a squirt of gas. Cleaned carb best I know bowl is full of gas does nothing. Choke or no choke.