Yamaha YXR660FAS Owner's Manual page 80

WARNING
POTENTIAL HAZARD
Operating on excessively steep hills.
WHAT CAN HAPPEN
The vehicle can overturn more easily on
extremely steep hills than on level sur-
faces or small hills.
HOW TO AVOID THE HAZARD
Never operate your vehicle on hills too
steep for it or your abilities. Never oper-
ate vehicles on hills steeper than 15°.
Do not drive across the face of a hill. Go
straight up the hill.
Practice on smaller hills before attempt-
ing large hills.
Before climbing the hill, first be sure you are
operating in low range 4WD or, if necessary,
with 4WD Diff. Lock. To climb a hill, you need
traction, momentum, and steady throttle.
Travel fast enough to keep your momentum
going, but not so fast that you cannot react to
changes in the terrain as you climb. Slow
down when you reach the crest of the hill if
you cannot clearly see what is on the other
side – there could be another person, an ob-
stacle, or a sharp drop off.
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