robmack's post there sums it up but I would clarify it by stating that the seal is removed and installed from the
transmission side of the intermediate flange rather than from the front of the flange, which could be construed as the
engine side. If picking and prying that seal from its position while the flange is mounted is the choice, to prevent damage to the shaft and flange—as robmack indicated is a possibility—confidence and patience should be present in full measure. Be that as it may, here's a question.
What are the symptoms you are encountering, Gabriel, that indicate the seal needs replacement—the thin film of
grease on the intermediate flange to which you have referred previously? Perhaps you could post a photo of this situation.
I doubt that a thin grease film—if that's the concern—is affecting anything. I'd rather be riding and wringing the last few thousand miles out of this season—or any season—rather than doing that replacement chore unless absolutely necessitated by reducing chance of potential slip-and-fall lawsuits caused by a pool of shimmering lubricant spreading outward from beneath my moto.
There are riders at this site that have been more or less happily putting thousands of miles on motos with
slipping clutches all the while leaving oil streaks on their shed floors like snail tracks on lawns. You aren't
there yet, are you?
It's a worthy goal though.