This is new for me: I wanted to do some clutch maintenance as the bike was sticking and stalling the engine on first shift of the day. So I opened the oil-tight (no leak) primary case and found water condensation and milky pink ATF oil. This is at the end of the summer riding season. The clutch plates were sticking as expected, so cleaned them up. Re-tightened the clutch fixing nut as it had slightly backed off from the Loctite sealant. I will use new ATF and expect all to be good again. Can the primary cases be too air-tight and cause this condensation?