What does a Honda outboard do when low oil pressure is detected?

When low oil pressure is detected in a Honda outboard, the engine typically returns to idle at approximately 1800 RPM as a protective measure. This response is designed to prevent further damage to the engine by reducing the load and stress on the components while still allowing the operator to maintain some control and function of the engine. It serves to protect the engine from potential failures that could occur due to inadequate lubrication.

Running the engine at a reduced RPM can help ensure that it does not stall or shut down completely, thus giving the operator time to address the underlying issue, such as adding oil or seeking maintenance. The other options, while they may represent different scenarios associated with engine management, do not accurately depict the immediate protective response of returning to idle RPM associated with low oil pressure detection.