1990 kx 60 clutch oil loss & removal

[paulpic]

Hi all,
This my first post here regarding my sons 1990 KX60 and i hope that it comes out ok.
The problem i have is over a few weeks the oil in clutch case drains to below the sightglass somewhere from the gearcase and it doesnt seem to be external.
I have added oil numerous times but it still dissapears.
Can somebody help me with where to look so that i don't go making things much worse.
When removing clutch basket is the 14mm centre bolt left or right hand thread,i have tried both ways but it doesn't want to loosen.

Link attached is a picture of the clutch area.

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Paul

[kxmoto4life]

I have seen them to be threaded on right, meaning to loosen you want to turn left. I have not worked on this bike specificaly so I cant be sure. It probably will be on there tight, many say you need an impact wrench.

[dhighlan]

It is either coming out of the case or being burnt. If the case seal leak it will be drawn into the camber.