The answer to 'generator hot to touch' is that a generator that is hot to the touch is a common symptom of an issue with the generator. This could be caused by a variety of problems, such as a mechanical issue, an electrical problem, or improper ventilation.
Some common causes include a faulty alternator, a clogged air filter, or a problem with the engine cooling system. Symptoms may also include the generator shutting off unexpectedly, reduced power output, or unusual noises. If your generator is hot to the touch, it's best to have a professional electrical technician inspect it to diagnose and resolve the issue. Attempting to troubleshoot or repair a hot generator yourself can be dangerous and may cause further damage.