Hi, sounds a little similar to the problem i'm having.
The Zed seems to start fine when cold (98of the time), but if I’ve been driving for a while, say stop at say the services, when I come back to the car 20 minutes later it is very reluctant to start. Battery is fine, it turns over fine and semi starts, burbles a little before dying. After numerous attempts it fires up and runs as if nothing has happened! Everything is standard, battery isn't that old and its only a recent issue. Last spot of work done on the car was a new clutch a fly wheel about 6 plus months back.