Originally Posted by SCHMIDTYS
More likely the inner primary main shaft seal is leaking . Take your light and mirror and look up the back of the inner primary where the drive sprocket is located . When that seal leaks it leaves a trail of oil down the back out the front and drips near the drain plug as that's the lowest point when the bike is on the side stand . Very common leak !
Yes.... but also make sure the hole for the drain plug doesn't have a crack in it. You'll see it (if there's one) if you look really close, with the plug IN.
As well..... if you look at the inner primary vent tube, at the top, between the primary and the trans, it may be venting a bit, which is why i run slightly less then a quart, vs a whole quart of primary fluid.
If it's venting, it'll run down the back of the inner primary and show up where you're talking about too.