Yamaha YFM90RA Owner's Manual page 49

Riding your ATV requires skills acquired
through practice over a period of time.
Do not attempt to operate at maximum performance
until you are totally familiar with the ATV's handling
and performance characteristics. Take the time to
learn the basic techniques well before attempting
more difficult maneuvers. Become familiar with this
ATV at slow speeds first, even if you are an exper-
ienced operator.
Not recommended for children under 12 years
of age.
WARNING
A child under 12 should never operate an ATV
with engine size greater than 70 cc. Use by chil-
dren of ATVs that are not recommended for
their age can lead to severe injury or death of
the child.
7-3
7