Should not back fire upon start up. Replace ECTS and see if that helps
It's lean. You have to figure out why.
to much fuel is going to the engine for it to burn it all
AnswerSounds to me that your vehicle is off time. Check the timing on it. If the timing is off it will backfire through the carb and also if it is cross wired (firing order wrong) it will backfire through the carb.
that's what I'm trying to find out
sheared flywheel key. youtube has vids... type in mower cord backfires & you'll see instructions on how to fix it.
Incomplete combustion
Could be in need of a tune-up.
you tell me the year ill tell you why
Start and run, no. Cough, backfire, yes.
timing is offset
Either the distrbutor cap is cracked or broken or the plug wires are not in the correct firing order or the drive for the distributer is partially broke or the valve train is to tight.
i am looking were the cooled start sensor is on a 94 Saturn is at