Yamaha YFM90RA Owner's Manual page 59

Know the terrain where you ride. Ride cautiously
in unfamiliar areas. Stay alert for holes, rocks, or
roots in the terrain, and other hidden hazards
which may cause the ATV to upset. WARNING!
The ATV could go out of control if you do not
have enough time to react to hidden rocks,
bumps, or holes. Go slowly and be extra care-
ful when operating on unfamiliar terrain. Always
be alert to changing terrain conditions when
operating the ATV.
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