Hey Boe
Don't know about the chacer but...
The clutch fork should pivot on a bolt with a ball on the end. Or something similar. You should be able to screw this in and out and then lock it in place with a nut. This is used to take up slack in the system as the clutch wears. If the chaseres system works like this you just need to undo/do up (depending on which end, front or back, the fork pivots on). This should allow you to move the fork closer/further to/from the clutch. Therefore allowing it to be ingaged/disengaged more.
Just a shot. Can yor remember when you had it apart?