Started fine, now it won't

[Revs]

Wife jumped on the GZ to ride to work yesterday. She got as far as the corner Walgreens. She stopped there to run in for an energy drink. When she came out, the bike wouldn't start. Tried choking it, tried flipping the fuel switch to prime, nothing. It would turn over just not start. So, I ride over and look at it, same thing. We push it the half block home. Sat in the driveway all day. I get home after 9 pm last night and there is a circle of spilled fuel on the ground that has dried. Probably close to a pint from the size of the circle.

Any ideas? I went over the bike bike Sunday and noticed the vacuum line to the back of the fuel petcock had come undone. Think she just flooded it when she flipped it to Prime and the vacuum line sucked up fuel?

She had a hard time getting it to run on the Reserve and On settings for a while and left it on Prime to ride it on short rides. I'm wondering if that has anything to do with it. I know prime is like a gravity flow setting. I'm thinking that when the vacuum line came undone, the Prime setting let fuel flow into the carb still so she could ride it.

Thanks everyone for any ideas in advance