2008 Arctic Cat ATVs factory service and repair manual, Page 24Get this manual
Adjusting Clutch (4001500 Manual Transmission)
To adjust the clutch, use the following procedure1Using an impact driver, remove the screws securing the cover and remove the coverAccount for the O-ring
Rotate adjustment screw #2 alternately clockwise and counterclockwise to ensure free movement without binding; then lock the jam nut securing adjustment screw #2Rotate adjustment screw #1 clockwise 118 turn; then lock the jam nut securing adjustment screw1iNOTE: At this point the clutch should be adjusted correctlyTest to ensure accurate adjustment
6Install the cover making sure the O-ring is properly positioned; then secure with the screws
TIRE SIZES
The ATV is equipped with low-pressure tubeless tires of the size and type listed (see Section 1)Do not under any circumstances substitute tires of different type or size2Loosen the jam nuts securing adjustment screw #1 (forward) and adjustment screw #2 (rearward)Always use the size and type of tires specifiedAlways maintain proper tire inflation pressure