2009 YAMAHA YFM90R change wheel

1-2
1
operating this ATV.Never operate at speeds too fast for your skills
or the riding conditions. Always go at a speed
that is proper for the terrain, visibility, operating
conditions, and your experience.Never attempt wheelies, jumps, or other stunts.Always inspect your ATV each time you use it to
make sure it is in safe operating condition. Al-
ways follow the inspection and maintenance
procedures and schedules described in this
manual.Always keep both hands on the handlebars and
both feet on the footrests of the ATV during op-
eration.Always go slowly and be extra careful when op-
erating on unfamiliar terrain. Always be alert to
changing terrain conditions when operating the
ATV.Never operate on excessively rough, slippery or
loose terrain until you have learned and prac-
ticed the skills necessary to control the ATV on
such terrain. Always be especially cautious on
these kinds of terrain.Always follow proper procedures for turning as
described in this manual. Practice turning at low
speeds before attempting to turn at fasterspeeds and never turn at excessive speeds.
Never operate the ATV on hills too steep for the
ATV or for your abilities. Practice on smaller hills
before attempting larger hills.Always follow proper procedures for climbing
hills as described in this manual. Check the ter-
rain carefully before you start up any hill. Never
climb hills with excessively slippery or loose sur-
faces. Shift your weight forward. Never open the
throttle suddenly or make sudden gear changes.
Never go over the top of a hill at high speed.Always follow proper procedures for going down
hills and for braking on hills as described in this
manual. Check the terrain carefully before you
start down any hill. Shift your weight backward.
Never go down a hill at high speed. Avoid going
down a hill at an angle that would cause the ve-
hicle to lean sharply to one side. Go straight
down the hill where possible.Always follow proper procedures for crossing
the side of a hill as described in this manual.
Avoid hills with excessively slippery or loose sur-
faces. Shift your weight to the uphill side of the
ATV. Never attempt to turn the ATV around on
any hill until you have mastered the turning tech-
nique described in this manual on level ground.

7-10
ModificationsExhaust system
The exhaust system on the ATV is very hot during
and following operation. To prevent burns, avoid
touching the exhaust system. Park the ATV in a
place where pedestrians or children are not likely
to touch it.
7
WARNING
Never attempt stunts, such as wheelies orjumps. Don’t try to show off.
WARNING
Never modify this ATV through improper in-
stallation or use of accessories. All parts and
accessories added to this ATV should be gen-
uine Yamaha or equivalent components de-
signed for use on this ATV and should be
installed and used according to instructions.
Improper installation of accessories or modifi-
cation of this ATV may cause changes in han-
dling which in some situations could lead to an
accident. If you have questions, consult an au-thorized ATV dealer.

8-6
11
*Shock absorber
assemblies
Check operation and correct if necessary.Check for oil leakage and replace if necessary. √ √ √
12 *
Front knuckle piv-
otsLubricate with lithium-soap-based grease.
√ √ √
13 *Steering shaftLubricate with lithium-soap-based grease.
√ √ √
14 *Steering systemCheck operation and repair or replace if damaged.Check toe-in and adjust if necessary. √ √ √ √ √
Engine oilChange.Check ATV for oil leakage, and correct if neces-
sary. √
√ √ √Change.
NO.ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes rst month 1 3 6 6 12
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 32017
Check ATV for oil leakage, and correct if neces-
sary. √
√
18 *
Moving parts and
cablesLubricate.
√ √ √ √
8
9
*Wheel hub bearings
Check for looseness or damage, and replace if
necessary. √
√ √ √
10 *Chassis fastenersMake sure that all nuts, bolts, and screws are
properly tightened. √ √ √ √ √
1516
Engine oil strainer Clean.
√√ √
Final transmission oil