Stay with me on this.....
Maybe that cavity is SUPPOSED to fill with fluid. Thats what lubes the throwout bearing. That would also explain the need for an actual gasket there.
Just a thought...
Pretty sure its wrong though since there wasn't much of a sign of 90wt in there or on the push rod....actually that would encourage oil flowing down the the pushrod tub and into the clutch....disregard this ramble completely.
Motorcycles are like chlorine for the gene pool. 8/31/2013