The more I read the more I am sure that neutral and ground should be bonded on an RV generator. From
OSHA Fact Sheet on portable generators;Bonding is the intentional connection between the grounded circuit conductor (neutral) and the grounding means for the generator, which includes the generator’s frame. Thus, effective bonding of the neutral conductor to the generator’s frame is also a concern for the safe use of the the equipmentBeen interesting to pursue this for facts rather than internet “experts”, including myself. :B