Working on my ski right now and following maintenance maunal.

Can anyone tell me, can I lubricate my shaft coupler without taking shaft apart to the point your inspecting bumpers etc. manual recommends every 100 hours etc. and I just bought the ski...splines rattle a litlle at idle speeds and I just want to make sure it's greased up with as little pian as possible as I am still not very confortable taking ski to pieces, especially something as important as the drive shaft.

I found the cone shaped grease gun adapter on anohter tool thread. Is this all I need, if so, where do i push to put in grease without tearing something up! Don't need to be replacing drive shaft etc.

Any help is appreciated, thanks!