Yamaha YXR660FAS Owner's Manual page 32

1. Differential gear lock switch "LOCK"/"4WD"
2. Lever
Differential gear lock switch "LOCK"/
"4WD"
To lock the differential gear in 4WD, stop the
vehicle, make sure the On-Command four-
wheel-drive switch is set to "4WD", move the
lever to position b, and then set the switch to
"LOCK". When the differential gear is locked,
the differential gear lock indicator light "
will come on. To release the differential gear
lock, stop the vehicle and set the switch to
"4WD".
POTENTIAL HAZARD
Riding too fast while the vehicle is in
4WD-LOCK.
WHAT CAN HAPPEN
All wheels turn at the same speed when
the differential is locked, so it takes
more effort to turn the vehicle. The
amount of effort is more the faster you
go. You may lose control and have an
accident if you cannot make a sharp
enough turn for the speed you are trav-
eling.
HOW TO AVOID THE HAZARD
Always ride at a slow speed when the
vehicle is in 4WD-LOCK, and allow extra
time and distance for maneuvers.
"
DIFF.
LOCK
4-9
WARNING