| Re: what causes intake backfire? |
Subject: Re: what causes intake backfire? by tpi421vett on 2010/11/13 7:04:49 A intake valve hanging open would be the most common cause as mentioned. On flat tappet engines, if it pops back thru the tb at full throttle, the cam is going flat. And if the engine is extemely cold and the A/F ratio is was lean, they can pop back thru the carb or tb when cold. And also ignition problems as mentioned |
