Probably a stupid question but I have to ask. It doesn't look like its caused by damaged. It's a perfectly round hole. Dead center of the primer. Probably 2-3 millimeters in diameter. No fuel leaks from it. The primer appears to work. It's a '95-ish 3.8hp legend. I've never seen a primer bulb with a hole in it but then I've never messed with a tecumseh before.