The Handbook of Iowa Boating Laws and Responsibilities
The Official Boating Handbook of the Iowa Department of Natural Resources - Web Version
Table of Contents
Backfire flame arrestors are designed to prevent the ignition of gasoline vapors in case the engine backfires.
On Iowa state waters, all powerboats (except outboards) that are fueled with a volatile liquid (such as gasoline) must have an approved backfire flame arrestor, backfire trap, or similar device on each carburetor.
Backfire flame arrestors must be:
- In good and serviceable condition and…
- U.S. Coast Guard–approved (must comply with SAE J-1928 or UL 1111 standards).
Periodically clean the flame arrestor(s) and check for damage.
WARNING: Gasoline vapors can explode. Before starting engine, operate blower for four minutes and check (using your nose) engine compartment for gasoline vapors.