How to swap yamaha aerox 100cc ignition leads for 50cc ignition? ?

Hi.I have yamaha aerox 100cc and bought ignition from 50cc model.Fitted ignition,changed leads plug but from the begining bikes stars when ignition off and dont when ignition on.I swap couple leads and now starter is turning but dont run.When ignition off I can star by kick start.Who know how to swap leads over to get running like must be?Cheers