Yamaha GRIZZLY ULTRAMATIC YFM660FP Owner's Manual page 264

G
If your ATV encounters shallow water: Ride
slowly and carefully through slow moving wa-
ter, watching for obstacles. Be sure to let water
drain from the ATV and CHECK YOUR
BRAKES FOR PROPER OPERATION when
you come out of the water. Do not continue to
ride your ATV until you have regained ade-
quate braking ability. (See pages 7-63 ~ 7-67.)
7-79