I have a 1997 Roadtrek 190 Versatile. The generator is the original with the RV and just start having problems with stalling after the AC unit is turned on. I have changed the air filter, run a Seafoam/gas mixture through the carburetor and engine and changed the spark plug. Because the unit is underneath the rear of RV, I don't know how to get to the fuel filter to replace it. Does anyone have any experience with this situation?