1998-2001 Yamaha YFM600FHM Grizzly Factory Service Manual, Page 129Get this manual
TIRE INSPECTIONI WHEEL INSPECTION _
II:gS ImA I
A WARNING
Uneven or improper tire pressure may adversely affect the handling of this machine and may cause loss of control Maintain proper tire pressures Set tire pressures when the tires are cold Tire pressures must be equal in both front tires and equal in both rear tires2.lnspect: Ti re su rfaces Weardamage