I've got a JD LX172 which ran perfect until recently. It started popping a little before starting. Now it won't start but will backfire out the exhaust. I've replaced the coil, carb, ignition circuit board, checked the flywheel key, replaced the head gasket.
I'm at wits end here. Anyone know what is wrong here?
Thanks! jim
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix lawn mowers.