Yamaha BRUIN 350 YFM350AS Owner's Manual page 216

If your ATV has stalled or stopped and you believe
you can continue up the hill, restart carefully to
make sure you do not lift the front wheels which
could cause you to lose control. If you are unable
to continue up the hill, dismount the ATV on the
uphill side. Physically turn the ATV around and
then descend the hill.
If you start to roll backwards, DO NOT apply the
rear brake to stop. The ATV could easily tip over
backwards. Instead, apply the front brake gradual-
ly, or dismount the ATV immediately on the uphill
side.
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