What gasoline powered boats when should the blower be operated?

The blower on gasoline-powered boats should be operated for at least four minutes before starting the engine. This practice helps to ventilate the engine compartment and remove any potentially explosive fuel vapors. Additionally, the blower should be used whenever the boat has been re-fueled or if there is any suspicion of fuel leaks. Regular operation of the blower enhances safety while on the water.