I have a Gen1 2025R also. I cut an access hole in my cowling by the pedals. I was careful to make sure there were no electric wires behind were I was cutting . This lets me unbolt the metal panel to get to the U-joint. Then I purchased a 180 deg swivel grease coupler and ground a little bit off of the back of the coupler while at the desired angle. This grinding of the back helped greatly to reach and lock onto the u-joint fitting. For me it was worth the effort to do all of the above. Greasing once a season is easy for me now, before it was a pain in the a**. My 3D printed plastic cover was done before I retired and had access to a 3D printer.