Now I feel terrible for having to tell you that apparently the best install of the electric pump includes the oil cut off and a relay. As I understand it the oil cut off won't shut down the pump if the motor did not stop running in a rollover crash making things quite dicey if you are trapped. If I understand correctly the relay takes care of that factor. IDK how.

If you do not remember which wire you took off the Mikuni ??? How many loose wires do you have? What connectors are on the end? What sort of connector does the Mikuni have on it that might receive one of those wire connectors? Maybe Pennyman1 or Geezer101 will stop by.