RV Repair: wiring guide, chassis wiring, ford chevy

Question
where can i find a wiring diagram for a 1985 royal classic motorhome?

Answer
Ray,
   I am sorry to say that unfortunately you wont be able to.  The RV industry is just now getting to the point that they have basic wiring diagrams for the coaches.  If it is the chassis wiring you are looking for you should be able to go through whatever manufacturer built it, i.e., Ford, Chevy, Dodge, etc.  Good luck and happy camping.

Darren