1987-1997 Yamaha Big Bear 350 4x4 service manual, Page 147Get this manual
Too-little gear lash is extremely destructive to the gear teethIf test ride following reassembly indicates this condition, stop riding immediately to minimize gear damage WARNING:
Stop riding immediately if broken gear teeth are suspectedThis condition could result in locking-up of the shaft drive assembly, causing loss of control of the dike and possible injury to the rider