Why is it important to flush an outboard motor after use?

Flushing an outboard motor after use is essential primarily to remove salt, sand, and debris that can accumulate in the cooling system and other parts of the motor. Saltwater, in particular, can lead to corrosion and buildup that may cause significant damage over time. By flushing the motor with fresh water, you help prevent these contaminants from causing issues that could impair performance or lead to costly repairs.

While other factors, such as overheating and oil circulation, are important to consider in overall motor maintenance, the act of flushing specifically targets the removal of harmful substances that directly impact the physical integrity and longevity of the engine. This maintenance routine is a key practice to extend the life of an outboard motor and ensure it runs efficiently.