I'm thinking some crap clogs the filter while fuel is flowing, making a restart difficult, but then after a while the particles drop away allowing fuel to flow again until it flows hard enough to suck it all back into the filter again. Doesn't quite fit your "dies if idled" description though.
I'm thinking some crap clogs the filter while fuel is flowing, making a restart difficult, but then after a while the particles drop away allowing fuel to flow again until it flows hard enough to suck it all back into the filter again. Doesn't quite fit your "dies if idled" description though.