Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Make and model?
Application? When did it last run? If you remove spark plug and hold finger with rag over spark plug hole, does it have enough compression t move your finger?
?? Nothing false here! I want to help!
Did you see my response?
Backfire can be out of time or a valve open when spark occurs.
I work from home as contractor, I don't know what goes on with site and billing on your end. All I do is try to answer questions! Your beef is with site not me. I will report this question to site.