YAMAHA GRIZZLY 450 2012 Owners Manual

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INTERNAL: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten egg
or vegetable oil. Call a physician immediately.
EYES: Flush with water for 15 minutes and get
prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of ig-
nition away. Ventilate when charging or using
in an enclosed space.
KEEP OUT OF REACH OF CHILDREN.
NOTICEECB00620Never attempt to remove the battery cell seals,
as this would permanently damage the battery.To remove the battery
1. Remove the seat. (See page 4-18.)
2. Remove the battery holding plate by removing the bolts.
3. Disconnect the negative battery lead first, then the positive battery lead by removing
their bolt. NOTICE: When removing the bat-
tery, the main switch must be off, and the
negative lead must be disconnected be-
fore the positive lead.
[ECB01001]
4. Pull the battery out of its compartment.
To charge the battery
Have a Yamaha dealer charge the battery as soon
as possible if it seems to have discharged. Keep in
mind that the battery tends to discharge more
quickly if the ATV is equipped with optional electri-
cal accessories.1. Bolt
2. Battery holding plate
3. Positive battery lead (red)
4. Negative battery lead (black)
3 4
1 2
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NOTICEECB00931To charge a VRLA (Valve Regulated Lead Acid)
battery, a special (constant-voltage) battery
charger is required. Using a conventional bat-
tery charger will damage the battery.To store the battery
If the ATV will not be used for more than one
month, remove the battery, fully charge it, and
then place it in a cool, dry place.
If the battery will be stored for more than two
months, check it at least once a month and fully
charge it if necessary.NOTICEECB00940Always keep the battery charged. Storing a dis-
charged battery can cause permanent battery
damage.To install the batteryTIPBe sure the battery is fully charged.1. Place the battery in its compartment.2. Connect the positive battery lead first, then
connect the negative battery lead by installing
their bolt.NOTICE: When installing the bat-
tery, the main switch must be off, and the
positive lead must be connected before
the negative lead.
[ECB01110]
3. Install the battery holding plate by installing the bolts.
4. Install the seat. (See page 4-18.)1. Positive battery lead (red)
2. Negative battery lead (black)
1
2
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EBU30250Replacing a fuse The main fuse, the EPS fuse, and the fuse box are
located under the seat. (See page 4-18.)If a fuse is blown, replace it as follows.1. Turn the key to “ OFF” and turn off all electrical
circuits.
NOTICEECB00640To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse.
1. Main fuse
2. Fuse box
3. EPS fuse
4. Spare main fuse
12
3
4
1. Headlight fuse
2. Signaling system fuse
3. Ignition fuse
4. Four-wheel-drive motor fuse
5. Backup fuse (for clock)
6. Auxiliary DC jack fuse
7. Spare fuse
1
2
3
4
5
6
7
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82. Remove the blown fuse, and then install a
new fuse of the specified amperage.
WARNING! Always use a fuse of the spec-
ified rating, and never use a substitute ob-
ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02172]
3. Turn the key to “ ON” and turn on the electrical
circuits to check if the devices operate.
4. If the fuse immediately blows again, have a Yamaha dealer check the electrical system.EBU25481Replacing a headlight bulb If a headlight bulb burns out, replace it as follows.1. Remove the cover at the rear of the headlight by pulling it off.
2. Remove the headlight bulb holder cover by pulling it off.
Specified fuses:
Main fuse:30.0 A
Headlight fuse: 15.0 A
Ignition fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Signaling system fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Backup fuse: 5.0 A
EPS fuse: 40.0 A1. Cover at the rear of the headlight
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3. Remove the headlight bulb holder by pushing
it in and turning it counterclockwise. 4. Remove the burnt-out bulb by pulling it out.
5. Insert a new headlight bulb into the bulb hold-
er by pushing it in. NOTICE: Do not touch
the glass part of the headlight bulb to keep
it free from oil, otherwise the transparency
of the glass, the luminosity of the bulb, and
the bulb life will be adversely affected.
Thoroughly clean off any dirt and finger-
prints on the headlight bulb using a cloth
moistened with alcohol or thinner.
[ECB00651]
6. Install the bulb holder by pushing it in and turn- ing it clockwise.
1. Headlight bulb holder cover
1. Headlight bulb holder
1. Do not touch the glass part of the bulb.
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87. Install the bulb holder cover and the cover at
the rear of the headlight. NOTICE: Make sure
the headlight bulb holder cover is securely
fitted over the bulb holder and seated
properly.
[ECB00671]
8. Adjust the headlight beam if necessary.EBU25551Adjusting a headlight beam NOTICEECB00690It is advisable to have a Yamaha dealer make
this adjustment.To raise a headlight beam, turn the headlight beam
adjusting screw in direction (a).
To lower a headlight beam, turn the adjusting
screw in direction (b).
EBU25622Replacing the tail/brake light bulb If the tail/brake light bulb burns out, replace it as
follows. 1. Remove the tail/brake light assembly by re- moving the nuts together with the washers.1. Headlight beam adjusting screw
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2. Remove the tail/brake light bulb holder (to-
gether with the bulb) by turning it counter-
clockwise. 3. Remove the burnt-out bulb by pushing it in
and turning it counterclockwise.
1. Tail/brake light assembly
2. Nut
1. Tail/brake light assembly
2. Tail/brake light bulb holder
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84. Insert a new bulb into the bulb holder, push it
in, and then turn it clockwise until it stops.
5. Install the bulb holder (together with the bulb) by turning it clockwise.
6. Install the tail/brake light assembly by install- ing the washers and the nuts.
EBU25651Removing a wheel 1. Place the ATV on a level surface.
2. Loosen the wheel nuts. 3. Elevate the ATV and place a suitable stand
under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
EBU25701Installing a wheel 1. Place the ATV on a level surface.
2. Install the wheel and the nuts.TIP
The arrow mark on the tire must point toward
the rotating direction of the wheel.
1. Tail/brake light bulb holder
2. Tail/brake light bulb
1. Wheel nut
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Tapered nuts are used for both the front and rear
wheels. Install the nuts with their tapered side to-
wards the wheel.
3. Lower the ATV to the ground.
4. Tighten the wheel nuts to the specifiedtorques.
1. Arrow mark
1
1. Tapered nutTightening torques:Front wheel nut:55 Nm (5.5 m ·kgf, 40 ft ·lbf)
Rear wheel nut: 55 Nm (5.5 m ·kgf, 40 ft ·lbf)
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EBU25740Troubleshooting Although Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the fu-
el, compression, or ignition systems, for example,
can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vital
systems yourself. However, should your ATV re-
quire any repair, take it to a Yamaha dealer, whose
skilled technicians have the necessary tools, expe-
rience, and know-how to service the ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02280Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces.U1CT61E0.book Page 61 Wednesday, April 20, 2011 6:36 PM