Fuel sheen on water after shutdown-no cowl leak

[RusshasOMC cobraissue]

Yamaha 150HP saltwater series OX66-yr 2000. After shutting down engine and raising engine up i'm getting a fuel leak which appears to be coming out the small little holes on the side of the top of the lower unit. It ultimately stops after a few minutes in the raised position and doesnt seem to be leaking when the motor is down and running. Any advice or suggestions would be much appreciated. There is nothing leaking in the engine power head area-cowl area is completely dry.