Yamaha WARRIOR YFM350X Owner's Manual page 210

It is important when climbing a hill to make
sure that your weight is transferred forward on
the ATV. This can be accomplished by leaning
forward and, on steeper inclines, standing on
the footboards and leaning forward over the
handlebars.
WARNING
Always follow proper procedures for
climbing hills as described in this Owner's
Manual.
Always check the terrain carefully before
you start up any hill.
Never climb hills with excessively slip-
pery or loose surfaces.
Shift your weight forward.
Never open the throttle suddenly or make
sudden gear changes. The ATV could flip
over backwards.
Never go over the top of any hill at high
speed. An obstacle, a sharp drop, or an-
other vehicle or person could be on the
other side of the hill.
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