Weird breakdown

Was about to take the val out for a quick spin to pickup some computer parts but while in the driveway idling it stopped running. Tried to restart but it wouldnt, it wouldnt even give a squirt of LPG to prime. Spent ages looking for wiring faults, bad earths and eventually decided enough had been ruled out as the cause so replaced one of the LPG solenoids (on the carb that wouldnt even prime when the button on top was pressed) and it started and ran fine!! Thanks to Paul for helping out… ‘many hands make some things possible that otherwise were impossible’…