On gasoline powered boats, when should the blower be operated?

Operating the blower on gasoline-powered boats is essential for safety, particularly to prevent the build-up of potentially explosive fumes in the engine compartment. The correct practice dictates that the blower should be used after refueling and before starting the engine. This is crucial because refueling can lead to fuel vapors being present, which can accumulate in the enclosed spaces of the engine area. By running the blower for several minutes, any lingering vapors are vented out, reducing the risk of ignition when the engine is started.

It’s important to note that this practice is crucial for safety regulations mandated by organizations such as the U.S. Coast Guard. Ensuring the space is clear of fumes before starting the engine minimizes the risk of an explosion, promoting a safer boating experience.