Yamaha YFM80GV Owner's Manual page 64

Be sure to coordinate the use of the throttle and
shift pedal properly. If the throttle is applied too
abruptly or if the throttle is not released during
shifting, or if the shift pedal is not released
before applying the throttle, the front wheels
may lift off the ground resulting in a loss of direc-
tional control. Avoid higher speeds until you are
thoroughly familiar with the operation of your
ATV.
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Do not shift gears without releasing the
throttle. Damage to the engine or drive train
may occur.
When slowing down or stopping, release the
throttle and apply the brakes smoothly and
evenly.
As you slow down, shift to a lower gear. Be sure
that the engine has sufficiently slowed before
engaging a lower gear. Improper use of the
brakes or shifting can cause the tires to lose
traction, reducing control and increasing the
possibility of an accident.
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Make sure the engine has sufficiently slowed
before shifting to a lower gear. Engaging a
lower gear when the engine speed is too
high could cause the wheels to stop rotating.
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