2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 79Get this manual
PERIODIC MAINTENANCELUBRICATION INTERVALS INITIAL ITEM ROUTINE
Whichever comes first mile (km) hours 200 (320) 20 750 (1,200) 75
1,500 (2,400) 150 1,500 (2,400) 150 3,000 (4,800) 300