R651-218. Carburetor Backfire Flame Control  


R651-218-1. Acceptable Means Of Backfire Flame Control
Latest version.

(1) The following are acceptable means of backfire flame control:

(a) an approved flame arrestor secured to the air intake with flametight connection;

(b) an approved engine air and fuel induction system; or

(c) an attachment to the carburetor or location of the engine air induction system where a flame caused by engine backfire will be dispersed outside the vessel in a manner that the flame will not endanger the vessel or passengers. All attachments shall be of metallic construction with flametight connections and secured to withstand vibration, shock, and engine backfire.