I finally got my Onan generator running and it puts out good voltage, 122. The problem is, it doesn't seem to connect to the RV panel. When I plug in the RV everything works fine, but the generator do...
1987 vintage may not have an 'auto transfer switch' but actually use an OUTLET that one has to plug shore power cord into. Gen feds outlet..plug shore cord into outlet and then gen feds RV via shore power cord.
Got a Unused 30A outlet in 'electrical bay'?
Otherwise..trace where shore power cord goes and where gen power cord goes. Both end up in a 'electrical box' with wires going out to main panel you have found the elusive transfer switch