Yah, it really should...
But it's not a perfect world, and a chinagirl is not the date of anyone's dreams.
These kitbikes are not meant to sit there for a long period of time, idling at a stoplight.
Mine will, with the clutch pulled in, on the button, for a bit...
But I usually shut down and expect a quick re-start in a few pedals.
Most the time, it does!
and that way, I hope to keep people convinced I'm REALLY riding a bicycle!
IMO, if u get your clutch adjusted properly for this feat, and the carb to co-operate, it won't be too long before all that changes, and you'll need to re-adjust everything again.
No biggie, but I'd rather just ride...
Best
rc