Just purchased a used fully self-contained van or class B camper, not sure what to call it. Anyway, it has a little 2.8 generator that sits underneath the chassis just behind the rear axle, in the mi...
It will only be propane if it's a diesel, otherwise it's gas, and the carb gets gummed up pretty easy from lack of exercise. The carb. can't be rebuilt, so if it's running keep using it, and exercise per the manual. Type, year, and model of your Class B would be helpful.