Pau13z I can't describe adequately regarding flow rate to look for except to suggest pulling a tank off a working Victa mower and looking at that as an example. The best I can describe is that it comes out as a slow but steady stream rather than dribbling out in a broken flow, but best to do as I suggest so you can guage it for yourself with any others you check.

Here's a guy with a YouTube car restoring channel who also dabbles in getting Victas going.
Here is an example.
httaps://youtu.be/4b-zDJ0K1qg

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!