I've never seen a Ducati engined machine so suspect it could be a rarity. Take the plug out and spin the engine over to check for a spark. If it doesn't, Google implies it has points, so they will need cleaning and re-gaping. Probably best to clean the carb out too. Unless you are very lucky, old fuel will have turned to dust in the float bowl and blocked jets etc. Then, with a spark and fresh fuel, it should fire up.