2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 290Get this manual
REAR CONSTANT VELOCITY JOINTFINAL DRIVE GEAR AND DRIVE SHAFT
ASSEMBLING THE FINAL DRIVE GEAR 1.Adjust: Final gear lash Refer to "MEASUREMENT AND ADJUSTING THE FINAL GEAR LASH"
2.Check: Final drive gear operation Unsmooth operation Replace the final drive gear assemblyInsert the double off-set joint into the final drive gear, and turn the gear back and forth