I spaced it and forget to suggest this group
https://49ccscoot.proboards.com/
They are very Chinese brand friendly, and while you are looking for 49cc engine information, they do discuss larger displacement scooters. There are probably people who either have your model scooter, or have a scooter that uses your same carb. Not to suggest to leave us, as you CAN be a member of both forums; the 49cc group will probably get you exact answers. If you do get your answer there, lease let us know how you solved the carb issues