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You are looking at a preview of what’s in the timed Kentucky Boat Ed Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Kentucky Boater Education Certificate.

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Because boat engines may backfire, all powerboats (except outboards) that are fueled with gasoline must have an approved backfire flame arrestor on each carburetor. Backfire flame arrestors are designed to prevent the ignition of gasoline vapors in case the engine backfires.

  • Backfire flame arrestors must be:
    • In good and serviceable condition
    • U.S. Coast Guard–approved (must comply with SAE J-1928 or UL 1111 standards)
  • It is illegal to have any holes in the mesh of the backfire flame arrestor.
  • Periodically clean the flame arrestor(s) and check for any damage.
Backfire flame arrestor