I just wanted to post saying I finally figured out what was wrong. After putting on the second new carb, it still wasn't taking throttle. So, trying to problem solve, I placed my hand on the air intake boot that's right in front of the seat between the seat and gas tank. I cupped my hand over it and it took throttle.. Took it for a test drive and realized that it needed the plastic tank cover on because it was sucking too much air into that boot and causing it to stall out.
So if anybody comes across this thread that's having a similar issue, try putting the gas tank cover on and see if it connects the issue like it did mine.
Thank you to those who commented trying to help me figure it out.
