One of the tricks to stop this type of leak it to clean it up very well with something to cut the oil and build up (like mineral spirits), and then work an o-ring that fits snuggly over the the moulded rubber that plugs the hole and holds the wires coming out of the stator to the VR. Take your time and use something to work the o-ring in that will not damage the o-ring or the moulded piece (like a popsicle stick). Might get a few more thousand miles from this before having to pull the primary cover and stuff out to reseal the stopper plug from the inside of the primary.
Cheers,
TQ