Backfire Flame Control Devices

All motorboats built after April 1940 with inboard-mounted gasoline engines (this includes inboards, inboard-outboards, and airboats) must have a backfire flame control device mounted securely to each carburetor.

Backfire flame control devices must be:

In good and serviceable condition
USCG–approved (must comply with SAE J-1928 or UL 1111 standards)

Backfire flame control devices ensure that any engine backfire is dispersed into the atmosphere and also substantially reduce the chance of explosion or fire.
Periodically clean the backfire flame control device and check for any damage.

Unit 4 of 6
Topic 8 of 19
Page 1 of 4

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