The answer to 'generator installation burning smell' is that a burning smell from a newly installed generator is often caused by normal break-in or break-down of the generator's components. This is common and usually not a sign of a serious problem, but it should be addressed promptly to prevent further damage.
The burning smell may be due to the break-in of new parts, such as the engine, alternator, or other electrical components. It can also be caused by dust, debris, or oil burning off during the initial operation. In some cases, it may be due to an electrical short or other wiring issue. If the smell persists or gets worse, it's important to have a professional electrician inspect the generator to identify and address the root cause.