2012 YAMAHA GRIZZLY 350 tires

EBU17420
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ............................ 1-1
SAFETY INFORMATION .............................. 2-1
DESCRIPTION .............................................. 3-1Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments ............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS .................................................. 4-1 Main switch ................................................ 4-1
Indicator lights and warning light ................ 4-2
Speedometer .............................................. 4-3
Handlebar switches .................................... 4-4
Throttle lever .............................................. 4-5
Speed limiter .............................................. 4-6
Front brake lever ........................................ 4-7
Brake pedal and rear brake lever ............... 4-7
Parking brake ............................................. 4-8
Drive select lever ........................................ 4-9
Fuel tank cap .............................................. 4-9
Fuel .......................................................... 4-10 Fuel cock ..................................................4-11
Starter (choke) ..........................................4-13
Seat ..........................................................4-13
Storage compartment ...............................4-14
Front carrier ..............................................4-15
Rear carrier ...............................................4-15
Adjusting the front shock absorber
assemblies ..............................................4-16
Adjusting the rear shock absorber assembly .................................................4-17
PRE-OPERATION CHECKS ..........................5-1 Fuel .............................................................5-3
Engine oil ....................................................5-3
Final gear oil ...............................................5-3
Differential gear oil ......................................5-3
Front and rear brakes .................................5-3
Throttle lever ...............................................5-4
Tires ............................................................5-4
Chassis fasteners .......................................5-6
Instruments, lights and switches .................5-6
OPERATION...................................................6-1 Starting a cold engine .................................6-1U1NS60E0.book Page 1 Monday, August 1, 2011 4:12 PM

1-5
1
**.* kPa
*.** kgf/cm²*.* psi **.* kPa
*.** kgf/cm²
*.* psi
NEVER use with drugs or alcohol.
NEVER store fuel or flammable liquids.
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. Adjust the tire pressure.
Improper tire pressure can cause loss of
control.
Loss of control can result in severe injury or
death.
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.
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.
U1NS60E0.book Page 5 Monday, August 1, 2011 4:12 PM

2-3
2roll backwards, follow the special procedure for
braking described in this manual. Dismount on
the uphill side or to a side if pointed straight up-
hill. 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 have
reduced 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 modify an ATV through improper installa-
tion or use of accessories.
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 or
pulling a trailer. Allow greater distance for brak-
ing.
WARNING
EWB00072Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide,
a deadly gas. Breathing carbon monoxide can
cause headaches, dizziness, drowsiness, nau-
sea, confusion, and eventually death.
Carbon Monoxide is a colorless, odorless,
tasteless gas which may be present even if you
do not see or smell any engine exhaust. Deadly
levels of carbon monoxide can collect rapidly
U1NS60E0.book Page 3 Monday, August 1, 2011 4:12 PM

5-2
5
Front brake
Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
 Check brake pads for wear, and replace if necessary.
 Check brake fluid level in reservoir, and add specified brake fluid to
specified level if necessary.
 Check hydraulic system for leakage. Correct if necessary. 5-3, 8-27, 8-29, 8-30
Rear brake 
Check operation, and correct if necessary.
 Lubricate cables if necessary.
 Check lever and pedal free play, and adjust if necessary. 5-3, 8-27, 8-30
Throttle lever 
Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.
 Check lever free play, and adjust if necessary. 5-4, 8-26
Control cables Make sure that operation is smooth. Lubricate if necessary. 8-36
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. 5-4
Brake pedal 
Make sure that operation is smooth. Lubricate pedal pivoting point if
necessary. 8-37
Brake levers 
Make sure that operation is smooth. Lubricate lever pivoting points if
necessary. 8-37
Axle boots Check for cracks or damage, and replace if necessary. 8-35
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
ITEM ROUTINE PAGE
U1NS60E0.book Page 2 Monday, August 1, 2011 4:12 PM

5-4
5
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 pads and shoes for wear. (See page
8-27.)
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.EBU19814Tires Check tire pressure regularly to make sure it is at
the recommended specifications. Also check for
wear and damage.
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 t25.0 kPa (0.250 kgf/cm ², 3.6 psi)
Rear 25.0 kPa (0.250 kgf/cm ², 3.6 psi)
Minimum tire pressure: Fron t22.0 kPa (0.220 kgf/cm ², 3.2 psi)
Rear 22.0 kPa (0.220 kgf/cm ², 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)
U1NS60E0.book Page 4 Monday, August 1, 2011 4:12 PM

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 Manufacturing Corporation of America.
1. Low-pressure tire gauge
1. Tire wear limit
U1NS60E0.book Page 5 Monday, August 1, 2011 4:12 PM

5-6
5
Aftermarket tires and rims
The tires and rims that came with your ATV were
designed to match the performance capabilities
and to provide the best combination of handling,
braking, and comfort. Other tires, rims, sizes, and
combinations may not be appropriate.
EBU19840Chassis fasteners Make sure that all nuts, bolts and screws are prop-
erly tightened.EBU19850Instruments, lights and switches Check that all instruments, lights and switches are
working properly. Correct if necessary.
Fro nt:
Manufacturer/model:YFM350FAB CHENG SHIN/C-828
YFM35FGB MAXXIS/MU13
Size: AT25 x 8-12
Ty p e : Tu b e l e s s
Rear: Manufacturer/model:YFM350FAB CHENG SHIN/C-828
YFM35FGB MAXXIS/MU14
Size: AT25 x 10-12
Ty p e : Tu b e l e s s
U1NS60E0.book Page 6 Monday, August 1, 2011 4:12 PM

7-12
7
Select a large, flat, unpaved area to become famil-
iar with your ATV. Make sure that this area is free
of obstacles and other riders. You should practice
control of the throttle, brakes, and turning tech-
niques in this area before trying more difficult ter-
rain.
Set the parking brake and follow the instruction on
page 6-1 to start the engine. Once it has warmed
up you are ready to begin riding your ATV. With the
engine idling, return the starter (choke) to the
closed position, and shift the drive select lever into
the forward position, and then release the parking
brake. Apply the throttle slowly and smoothly.
The centrifugal clutch will engage and you will start
to accelerate. If the throttle is applied too abruptly,
the front wheels may lift off the ground, resulting in
a loss of directional control. Avoid higher speeds
until you are thoroughly familiar with the operation
of your ATV.
When slowing down or stopping, release the throt-
tle and apply the brakes smoothly and evenly. Im-
proper use of the brakes can cause the tires to lose
traction, reducing control and increasing the possi-
bility of an accident. TURNING YOUR ATV
WARNING
EWB01771Always follow proper procedures for turning
as described in this Owner
’s Manual. Practice
turning at low speeds before attempting to turn
at faster speeds. Do not turn at speeds too fast
for your skills or the conditions. ATV could go
out of control, causing a collision or overturn.To achieve maximum traction on unpaved surfac-
es, the two rear wheels turn together at the same
speed. Therefore, unless the wheel on the inside
of the turn is allowed to slip or lose some traction,
the ATV will resist turning. A special turning tech-
nique must be used to allow the ATV to make turns
quickly and easily. It is essential that this skill be
learned first at low speed.
As you approach a curve, slow down and begin to
turn the handlebars in the desired direction. As you
do so, put your weight on the footboard to the out-
side of the turn (opposite your desired direction)
and lean your upper body into the turn. Use the
throttle to maintain an even speed through the turn.
This maneuver will let the wheel on the inside of
the turn slip slightly, allowing the ATV to make the
turn properly.
U1NS60E0.book Page 12 Monday, August 1, 2011 4:12 PM