If there is no relay how do they flash? There has to be something to make them flash else you have to switch them on and off at the handlebar switch? Can't see a resistor doing anything, don't suppose the original indicators have a built in relay do they? Do you have a wiring diagram? I have no idea about Ducati electrics, only Japs, so the only thing I can suggest is don't ride in the rain? :shock: