just to clarify the hole looks to be the selector drum positioning shaft mine is also leaking although mine has the aluminium disc inserted over the end of the shaft albeit a little twisted from your photo yours is missing also it doesn't look as though there is a shoulder for the disc to butt up to but I will try to align mine with the drum positioning shaft end and let you know how I get on I wonder if a rubber tap washer and some chemical metal -JB weld would cure this leak ?
it has been said when you get all the leaks stopped the oil will run out the little hole in the end of the handle bar rubbers
Dave 2002 MZ RT125+1995 Saxon Tour(500cc) 1997 MZ 660 Traveller+6/13/09 WV USA "IN the end times the IDIOTS will be in charge of everything" "I like the road less traveled if it's PAVED!" wd8cyv at yahoo dot com