baldie chris

Hi not the right place maybe im struggling to start a discussion on here im new to trials central. I have just bought a 1990 beta zero with no spark i believe the motoplat stator has packed up i intent sending for repair. But also the wiring was badly butchered and think wired wrong any help would be great i have 5 wires from the stator blue and black to the coil. Then theres brown yellow and green i have a three pin regulator a fan a thermostat and a kill switch can anyone shed some light or help post on the correct discussion many thanks.