Yamaha Ultramatic GRIZZLY 660 Owner's Manual page 31

Four-wheel drive (4WD): Power is supplied
G
to the rear and front wheels.
G Four-wheel drive with the differential gear
locked (4WD-LOCK): Power is supplied to
the rear and front wheels when the differen-
tial gear is locked ("DIFF.LOCK"). Unlike
the 4WD mode, all wheels turn at the same
speed.
POTENTIAL HAZARD
Changing from 2WD to 4WD or from
4WD to 4WD-LOCK ("DIFF.LOCK"), or
vice-versa while the ATV is moving.
WHAT CAN HAPPEN
The ATV handles differently in 2WD
than in 4WD and in 4WD-LOCK in some
circumstances. Changing from 2WD to
4WD or from 4WD to 4WD-LOCK, or
vice-versa while moving may cause the
ATV to unexpectedly handle differently.
This could distract the operator and in-
crease the risk of losing control and an
accident.
HOW TO AVOID THE HAZARD
Always stop the ATV before changing
from 2WD to 4WD or from 4WD to 4WD-
LOCK, or vice-versa.
4-9
WARNING