I changed the plug and the same thing. I do know the primer dont work on it. I even poured a little fuel in the carb and got nothingIf it doesn't pop with starting fluid I would change the spark plug first. Even a good spark can not work under compression.
I've had better luck with Tecumseh's than Briggs over the years. Check the flywheel key. Idk why there's so much hate for those engines