Join Date: Nov 2001
Thanked 5 Times in 5 Posts
Re: HELP! Backfire through Carb
Why did you have to take off #4 plug wire? Did it keep backfiring with it on? There is a chance it could
be crossfire between plug wires but I'm never that lucky, hope you are. Otherwise, my guess is #4
intake valve is not closing. Hopefully, it's just burnt and didn't go through the top of the piston. Do a
compression test. Check the oil, does it smell like gas?