The answer to 'why is my generator hot to touch' is that a generator running hot is a common issue that can be caused by several factors. This could be due to an overload on the generator, a problem with the cooling system, or even just normal operation in high ambient temperatures.
Some common causes of a hot generator include running too many high-power appliances or devices, a clogged air filter, low oil levels, or issues with the generator's cooling fan or radiator. Symptoms may include the generator housing feeling very hot to the touch, reduced power output, or the generator shutting down due to overheating.