The answer to 'why is my generator burning smell' is that a burning smell from your generator is a sign of a serious problem that requires immediate attention. This could be caused by an electrical short, overheating, or a mechanical issue with the generator. The burning smell indicates that something is overheating or burning inside the machine, which can lead to further damage and even a fire if not addressed promptly.
Some common causes of a burning smell from a generator include a faulty alternator, worn-out bearings, a seized engine, or a problem with the wiring or electrical components. The smell may also be caused by oil or fuel leaks that are igniting. It's important to shut off the generator immediately and inspect it for any visible signs of damage or issues.