I have an early '84 Westy that has had an on and off  history of  the engine
dying as I push in the clutch to stop for a red light and then being  very
hard to restart.  If I drive for a short distance, turn it off and  come back
after a few minutes, it is also very hard to start.   Recently, I had to leave at
a store overnight.  When I came back this  morning, it started up ok but when
I got it home and tried to restart it in the  driveway it wouldn't start.
The starter turns over just fine.  Does  anyone have any suggestions?

TIA.
John