
, I have a Falcon spark which I’m trying to find a controller box for , the original DC moto jn067-a05006 doesn’t work so I tried one from another bike and all was good , I’m now struggling to find a replacement ( the falcon factory are useless ) , I got one off fleabay same voltage and wattage , all but one cable were the same , it lights up the control panel but when the crank is turned it just makes a buzzing sound and the wheel doesn’t turn , I resolderd the crank sensor wires in the right colour order but still no joy , I also tried a throttle control instead , excuse my ignorance on this as im new to electric bikes but I am learning and hoping to start converting vintage bikes to electric , any help would be appreciated, thanks .