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Benson · 03-28-2018, 11:03 AM

Back firing:

If there are any rust holes in muffler as muffler cools then vacuum inside muffler will suck air inside and backfire if any unburned gasoline is present and a glowing piece of carbon or ??.

03-28-2018, 11:03 AM	#14
Benson Senior Member Join Date: May 2010 Posts: 2,597	Re: backfire? Back firing: If there are any rust holes in muffler as muffler cools then vacuum inside muffler will suck air inside and backfire if any unburned gasoline is present and a glowing piece of carbon or ??. Last edited by Benson; 03-28-2018 at 11:10 AM.