One or two times probably not but more than that likely will. Especially if there were major dents you grinded away. You can buy a cheap plastic tool to check the balance and then just grind away from the non blade side to balance it out.
It really depends on your definition of balanced and how bad someone is at sharpening.
The blades are torqued down on there, if it's a combustion engine mower, nothing's you do to this blade sans taking an inch off is going to make much more vibration than the motor will itself.
The biggest worry is that you put enough vibration into it too cause it to loosen the blade.
If you're even half reasonable sharpening you're just taking off a fraction of a gram.
It also helps keep your grass healthy, because a dull blade will rip the grass instead of cutting it. If your grass clippings look frayed, it’s because they’re ripping.
Yep. Grew up with my grandfather working on small engines (read:lawnmowers, either push or driven) and one of things he would do when doing maintenance on them was to sharpen the blades with an angle grinder. Mades mowing a lot easier and generally looks more uniform as well. The other thing was that it almost always is the carb if the engine has issues.
My grandparents had one too. I never once saw them sharpen anything, but it moved around the front yard every once in a while, so they must have been keeping it out for something.
It's a bladed tool. You can absolutely notice a difference between a sharp and dull shovel. The edge rounds out in use. A quick touch-up with a file helps a ton.