Honda BF5D no power / oil pressure
 

The engine is outboard Honda BF5D. The engine starts without the problem. But the moment I start to speed it up is starts to choke. It vibrates significantly. The oil pressure diode blinks. While it should be on all the time. I have changed the oil for the fresh one up to the correct level. I have tried both from the external fuel tank and from the internal fuel tank. I have checked with new ignition spark plug. I have sprayed the electrical connections with the connection spray. The fuel filter appears to clean. The gasoline is fresh. Any ideas what might cause the issue? All help highly appreciated.