1981-1984 Official Honda ATC250R Shop Manual, Page 18Get this manual
MAINTENANCE
ATC 250R
CLUTCH ADJUSTMENT
Measure the clutch lever free play: FREE PLAY: 10-20 mm (38-34 in)
LOCK NUT Perform minor adjustments with the upper adjusterLoosen the lock nut and turn the adjusterTighten the lock nutPerform major adjustments with the lower adjusterLoosen the lock nut and turn the adjusterTighten the lock nutCheck the clutch operation
LOCK NUT