Clutch drive plates (usu. has friction pads and tabs on outer rim) alternate with Clutch driven plates that are smooth with teeth on inner rim. These slot into clutch "basket" and clutch hub. (the basket is driven via the crank and the hub drives the gearshafts) They are bound by the springs and endcaps bolted to the pressure plate in the basket. The plate movement or spread is negligable, 10-15mm spread over 13 plates. This spread is goverened by the actuating step gear thruster which cannot be adjusted.
The lever adjustment is for the amount a free play and the crankcase adjustment governs take-up spot; where resting lever returns the thruster. this can effectively allow the clutch to drive whilst having slack at lever, or vice versa.
Hope this is helpfull, Cheers.
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