2008-2010 Kawasaki KFX450R Factory Service Manual, Page 209Get this manual
6-8 ENGINE RIGHT SIDE Clutch Lever and Cable
Due to friction plate wear and clutch cable stretch over long period of use, the clutch must be adjusted in accordance with the Periodic Maintenance Chart
WARNING
To avoid serious burn, never touch the hot engine or exhaust chamber during clutch adjustment
Clutch Lever Free Play Inspection
Refer to the Clutch Lever Free Play Check in the Periodic Maintenance chapterClutch Lever Free Play Adjustment