Are you talking about the 10cc motor? I did not think they had a diaphragm? My 10cc does leak fuel as it is inverted but I figure being just a barrel carb it would do this.

Glenn

BTW, the fuel running out the carb issue, noted a while back, turned out to be a really tiny crease in one of the internal diaphragms. It wasn't allowing one of the "flappers" to close properly. That part replaced, we're back in business.[/QUOTE]