GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
Tilt the engine up part way, turn the helm hard over and remove the silver hex drain plug on the midsection. To change oil filter remove the side cover (6 screws and off it comes - very easy).
The plastic cap is the flush port plug. The oil drain is on the same side, but forward. It is a silver plug that you use an 8mm Allen (hex) wrench to remove.