Lubing clutch cable

Clutch Cable or Clutch Quadrant?
The Quadrant is a fairly easy fix, just spray something like WD or White Lithium grease on the quadrant and the shaft it rides on to stop the squeaking.
The clutch cable you'll need to disconnect the cable from the Quadrant and spray something like White Lithium grease down the cable and reinstall the cable.
 
Aye, attach the red tube to the end of the spray nozzle, stick in the end of the cable, wrap a rag around it, and spray til the lube comes out the other end. I would suggest lithium white grease over wd40 too.