Page 15 of 134

1-5
1
**.* kPa
*.** kgf/cm²*.* psi **.* kPa
*.** kgf/cm²
*.* psi
This pictogram shows trailer Hitch Tow
weight limit. (Combined weight of the trailer
and all cargo in the trailer.)
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
This unit contains high-pressure nitrogen
gas.
Mishandling can cause an explosion. Do not
incinerate, puncture or open.
Use unleaded gasoline only.
Measure the tire pressure when the tires are
cold. Turning the ATV in 4WD-LOCK
(“DIFF.LOCK”) takes more effort.
Operate at a slow speed and allow extra
time and distance for maneuvers to avoid
loss of control.
Adjust the tire pressure.
Improper tire pressure can cause loss of
control.
Loss of control can result in severe injury or
death. This pictogram shows the loading limits
and/or maximum load capacity for this ATV.
Follow all load limits and other loading
guidelines in this manual.
Load may include the driver, passenger,
human protective gear, accessories, goods,
luggage, and all other load related items.
Make sure you do not exceed the load limits.
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
This pictogram shows trailer Hitch Tongue
weight limit. (Weight on the trailer tongue.)
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
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Page 19 of 134

2-3
2
●Always use proper procedures if you stall or roll
backwards when climbing a hill. To avoid stall-
ing, maintain a steady speed when climbing a
hill. If you stall or roll backwards, follow the spe-
cial procedure for braking described in this man-
ual. Dismount on the uphill side or to a side if
pointed straight uphill. Turn the ATV around and
remount, following the procedure described in
this manual.●Always check for obstacles before operating in a
new area.●Never attempt to operate over large obstacles,
such as large rocks or fallen trees. Always follow
proper procedures when operating over obsta-
cles as described in this manual.●Always be careful when skidding or sliding.
Learn to safely control skidding or sliding by
practicing at low speeds and on level, smooth
terrain. On extremely slippery surfaces, such as
ice, go slowly and be very cautious in order to re-
duce the chance of skidding or sliding out of con-
trol.●Never operate an ATV in fast flowing water or in
water deeper than that recommended in this
manual. Remember that wet brakes may havereduced stopping ability. Test your brakes after
leaving water. If necessary, apply them several
times to let friction dry out the linings.
●Always be sure there are no obstacles or people
behind you when you operate in reverse. When
it is safe to proceed in reverse, go slowly.●Always use the size and type of tires specified in
this manual.●Always maintain proper tire pressure as de-
scribed in this manual.●Never exceed the stated load capacity for an
ATV. Cargo should be properly distributed and
securely attached. Reduce speed and follow in-
structions in this manual for carrying cargo. Al-
low greater distance for braking.●Do not operate your ATV during darkness un-
less it is equipped with a properly functioning
headlight. Off-road riding is inherently danger-
ous and additionally, off-road trails do not have
streetlights to guide you.●Never maintain an ATV without proper knowl-
edge. Contact an authorized ATV dealer to in-
form you on basic ATV maintenance. Certain
maintenance can only be carried out by certified
staff.
U1PY61E0.book Page 3 Wednesday, March 14, 2012 5:22 PM
Page 37 of 134

5-2
5
Rear brake Check operation, and correct if necessary.
Lubricate cable if necessary.
Check lever free play, and adjust if necessary. 5-3, 8-28, 8-33
Throttle lever Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.
Check lever free play, and adjust if necessary. 5-3, 8-26
Control cables Make sure that operation is smooth. Lubricate if necessary. 8-37
Drive chain Check chain slack, and adjust if necessary.
Check chain condition. Lubricate if necessary. 5-3, 8-34, 8-37
Wheels and tires Check wheel condition, and replace if damaged.
Check tire condition and tread depth. Replace if necessary.
Check air pressure. Correct if necessary. 5-3
Brake levers Make sure that operation is smooth. Lubricate lever pivoting points if
necessary. 8-38
Chassis fasteners Make sure that all nuts, bolts and screws are properly tightened. 5-6
Instruments, lights and
switches Check operation, and correct if necessary. 5-6
Battery Check electrolyte level. Fill with distilled water if necessary. 5-6, 8-41
ITEM ROUTINE PAGE
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Page 38 of 134

5-3
5
EBU19541Fuel Make sure that there is sufficient fuel in the tank.
(See page 4-7.)EBU19560Engine oil Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-11.)EBU19580Transmission oil Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-14.)EBU19652Front and rear brakes Brake levers●Check for correct free play in the brake levers. If
the free play is incorrect, adjust it. (See pages
8-29 and 8-33.)●Check operation of the levers. They should
move smoothly and there should be a firm feel-
ing when the brake is applied. If not, have the
ATV checked by a Yamaha dealer.Brake operation
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, check
the brake shoes for wear. (See page 8-28.)
EBU19761Throttle lever Check the operation of the throttle lever. It must
open smoothly and spring back to the idle position
when released. Have a Yamaha dealer correct if
necessary.EBU19770Drive chain Check the condition of the drive chain and check
the drive chain slack. Lubricate and adjust the
drive chain as necessary. (See page 8-34.)EBU19794Tires Check tire pressure regularly to make sure it is at
the recommended specifications. Also check for
wear and damage.
U1PY61E0.book Page 3 Wednesday, March 14, 2012 5:22 PM
Page 39 of 134

5-4
5
Tire pressure
Use the low-pressure tire gauge to check and ad-
just tire pressures when the tires are cold. Tire
pressures must be equal on both sides.
WARNING! Operation of this vehicle with im- proper tire pressure may cause severe injury
or death from loss of control or rollover. Tire
pressure below the minimum specified could
also cause the tire to dislodge from the rim un-
der severe riding conditions.
[EWB02541]
Set tire
pressures to the following specifications:
The low-pressure tire gauge is included as stan-
dard equipment. Make two measurements of the
tire pressure and use the second reading. Dust or
dirt in the gauge could cause the first reading to be
incorrect.Recommended tire pressure:
Fron t20.0 kPa (0.200 kgf/cm², 2.9 psi)
Rear 25.0 kPa (0.250 kgf/cm², 3.6 psi)
Minimum tire pressure: Fron t17.0 kPa (0.170 kgf/cm², 2.5 psi)
Rear 22.0 kPa (0.220 kgf/cm², 3.2 psi)
Maximum tire seating pressure: Fron t250 kPa (2.5 kgf/cm², 36 psi)
Rear 250 kPa (2.5 kgf/cm², 36 psi)
U1PY61E0.book Page 4 Wednesday, March 14, 2012 5:22 PM
Page 40 of 134
5-5
5Tire wear limit
When the tire groove decreases to 3 mm (0.12 in)
due to wear, replace the tire. Tire information
This ATV is equipped with tubeless tires with
valves.
WARNING
EWB02551Use of improper tires on this ATV may cause
loss of control, increasing your risk of an acci-
dent.After extensive tests, only the tires listed below
have been approved for this model by Yamaha
Motor Co., Ltd.
1. Low-pressure tire gauge
1
1. Tire wear limit
U1PY61E0.book Page 5 Wednesday, March 14, 2012 5:22 PM
Page 73 of 134
8-2
8
EBU27111Owner’s manual and tool kit Be sure to put this owner’s manual in the plastic
bag and to always carry it as well as the owner’s
tool kit and the low-pressure tire gauge in their re-
spective compartments under the seat.
The service information included in this manual
and the tools provided in the owner’s tool kit are in-
tended to assist you in the performance of preven-
tive maintenance and minor repairs. However,additional tools such as a torque wrench may be
necessary to perform certain maintenance work
correctly.
TIPIf you do not have the tools or experience required
for a particular job, have a Yamaha dealer perform
it for you.
1. Owner’s manual
2. Low-pressure tire gauge
3. Owner’s tool kit
1
2
3
U1PY61E0.book Page 2 Wednesday, March 14, 2012 5:22 PM
Page 77 of 134

8-6
8
4*Wheels Check runout and for damage, and replace if nec-
essary. √ √√√
5 *Tires Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if necessary. √ √√√
6 *Wheel hub bearings Check for looseness or damage, and replace if
necessary. √ √√√
7 *Lower arm pivots Lubricate with lithium-soap-based grease. √√√
8 Drive chain Check chain slack and adjust if necessary.
Check rear wheel alignment and correct if neces-
sary.
Clean and lubricate. √√√√√
9 *Drive chain roller Check for wear and replace if necessary. √√√
10 *V- b e l t Check for wear, cracks or other damage, and re-
place if necessary. √√
11 *Chassis fasteners Make sure that all nuts, bolts, and screws are
properly tightened. √√√√√
12 *Shock absorber as-
semblies Check operation and correct if necessary.
Check for oil leakage and replace if necessary.
√√√
13 *Front knuckle piv-
ots Lubricate with lithium-soap-based grease.
√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
U1PY61E0.book Page 6 Wednesday, March 14, 2012 5:22 PM