I’m sorry to hear this, and I hope your luck with this engine improves from here.

There are some ways that sellers can get “fake” reviews also. I recently bought a package of off brand flashlight batteries from Amazon. When I received them, they came with a letter saying that they would warranty the batteries for 10 years if I gave them a positive review within the next three days. LOL, how would I know if the batteries were any good the first three days that I owned them?!