You will have a 5/16 hole punched thru the fork, get a 5/16 or 8mm allen head capscrew then grind head down so most of the hex is gone and use a ball head in a die grinder to form a little depression for the pushrod on your clutch slave to locate in. My fork had slogged out enough that I could pull the capscrew into it with its nut but you may have to enlarge the hole slightly. This temporary fix has ended up remaining there even after a clutch job.
Thats oil on the slave, not fluid - my breather just hangs down the side of the block now. I look on it as rust prevention.
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