Originally Posted by sbaydreamer
So you access from the starboard front cabin? The shelf?
On the 3 cabin 450 (2011), access to the starboard side of the generator is through a panel that is behind the cupboard framing nearest the generator and next to the holding tank
in the starboard forward master bathroom. The cupboard doors should be removed and then the 20 or so screws holding the internal shelving can be removed (a right angle driver drill fitting helps do this quickly) The screws are found in the frames and shelves some are horizontal some are vertical top and bottom. Once the shelves are removed the white fiberglass
back panel can be unscrewed (take plastic screw caps off), and behind that is the insulated panel that lifts out. Behind that insulated panel is the Onan sound box that is undone at the top two locks with a coin and it slides to one side giving access to the generator. It gets faster with practice - done it 6 times now.