Which is a requirement for backfire flame arrestors on powerboats?

Backfire flame arrestors are critical safety devices on powerboats, designed to prevent flames from entering the engine and ignition areas in the event of backfire. Regular maintenance is essential to ensure these devices function correctly, as they can become clogged with dirt, grease, or fuel residue over time. Periodically cleaning and checking for damage helps maintain their effectiveness and safety performance, preventing potential hazards while operating the vessel.

Regular inspections also allow boaters to identify any deterioration in the material of the arrestor, which could impair its ability to stop flames effectively. In contrast, the other options suggest misleading or inaccurate practices related to the maintenance and necessity of flame arrestors on powerboats. Ensuring compliance with safety requirements like these is vital for the safe operation of any boating activities.