onan generator on winabago aspect

I just open panel door. Remove gen side panel.
Can change oil and filter from there.
What else do you want to do?
Fuel filter can be done from outside with a deep socket.
Remove fuel line and unscrew.

Hi Cranky400,
On our Aspect, we open the access door to the generator. Then there are two levers to move on the front of the generator (sort of hid up under the side of the motorhome) that will allow a door on the front to be removed. Its tight...usually have to work it around a little. Then you can check oil..change spark plug, etc. There is an access on the bottom of the generator that allows you to drain oil if you need to change it.