warning YAMAHA GRIZZLY 450 2011 Workshop Manual

8-62
8 Engine overheating
WARNING
EWB02290Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the rec-
ommended coolant as soon as possible.Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
U1CT60E0.book Page 62 Monday, May 31, 2010 10:05 AM

9-1
9
EBU25860
CLEANING AND STORAGE
EBU25881Cleaning Frequent, thorough cleaning of your ATV will not
only enhance its appearance but will improve its
general performance and extend the useful life of
many components.
1. Before cleaning the ATV:
a. Block off the end of the exhaust pipe to
prevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps
are properly installed.
2. If the engine case is excessively greasy, apply
degreaser with a paint brush. Do not apply de-
greaser to the wheel axles.
3. Rinse the dirt and degreaser off with a garden
hose. Use only enough pressure to do the job.
WARNING! Wet brakes may have reduced
stopping ability, increasing the chance of
an accident. Test the brakes after washing.
Apply the brakes several times at slow
speeds to let friction dry out the linings.
[EWB02311]
NOTICE: Excessive water pressure
may cause water seepage and deteriora-tion of wheel bearings, brakes, transmis-
sion seals and electrical devices. Many
expensive repair bills have resulted from
improper high-pressure detergent applica-
tions such as those available in coin-oper-
ated car washers.
[ECB00711]
4. Once most of the dirt has been hosed off,
wash all surfaces with warm water and mild,
detergent-type soap. An old toothbrush or bot-
tle brush is handy for hard-to-reach places.
5. Rinse the ATV off immediately with clean wa-
ter and dry all surfaces with a chamois, clean
towel or soft absorbing cloth.
6. Clean the seat with a vinyl upholstery cleaner
to keep the cover pliable and glossy.
7. Automotive type wax may be applied to all
painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish. When finished cleaning, start the
engine and let it idle for several minutes.
U1CT60E0.book Page 1 Monday, May 31, 2010 10:05 AM

10-5
10
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
180 mm (7.1 in)Electrical system:Ignition system:
DC CDI
Charging system:
AC magnetoBattery:Model:
YTX20L-BS
Voltage, capacity:
12 V, 18.0 AhHeadlight:Bulb type:
Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
Tail/brake light:
12 V, 5.0/21.0 W × 1
Meter lighting:
EL (Electroluminescent)
Neutral indicator light:
LED
Reverse indicator light:
LED
Coolant temperature warning light:
LEDPark indicator light:
LED
On-Command four-wheel-drive/differential gear lock
indicator:
LCD
High-range indicator light:
LED
Low-range indicator light:
LED
Differential gear lock indicator light:
LED
EPS warning light:
12 V, 1.7 W
Fuses:Main fuse:
30.0 A
EPS fuse:
40.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Auxiliary DC jack fuse:
10.0 A
Backup fuse:
5.0 A
Four-wheel-drive motor fuse:
10.0 A
U1CT60E0.book Page 5 Monday, May 31, 2010 10:05 AM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-30
Axle boots .................................................................... 8-45BBattery .......................................................................... 8-51
Brake fluid, changing .................................................... 8-40
Brake fluid level, checking ............................................ 8-40
Brake lever free play, checking the front ...................... 8-41
Brake lever, front .......................................................... 4-13
Brake levers, checking and lubricating ......................... 8-47
Brake light switches ..................................................... 8-46
Brake pads and friction plates, checking ...................... 8-39
Brake pedal and rear brake lever ................................. 4-13
Brake pedal, checking and lubricating ......................... 8-48
Brakes .......................................................................... 8-38
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-47
Carburetor, adjusting .................................................... 8-36
Carrier, front ................................................................. 4-22
Carrier, rear .................................................................. 4-22
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-26
Coolant temperature warning light ................................. 4-3
DDifferential gear oil ................................................ 5-3, 8-24
Drive select lever .......................................................... 4-14
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-38
Drive shaft universal joint, lubricating ........................... 8-49EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-36
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-17
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-7
EPS warning light ........................................................... 4-3FFinal gear oil .......................................................... 5-3, 8-21
Four-wheel-drive/differential gear lock indicator ............ 4-4
Fuel ....................................................................... 4-15, 5-3
Fuel cock ...................................................................... 4-16
Fuel gauge ..................................................................... 4-6
Fuel tank cap ................................................................ 4-14
Fuses, replacing ........................................................... 8-53HHandlebar switches ........................................................ 4-6
Headlight beam, adjusting ............................................ 8-56
Headlight bulb, replacing .............................................. 8-55
High-range indicator light ............................................... 4-2
U1CT60E0.book Page 1 Monday, May 31, 2010 10:05 AM

Horn switch .................................................................... 4-7IIdentification numbers .................................................. 11-1
Indicator lights and warning lights .................................. 4-2
Instruments, lights and switches .................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-7
Low-range indicator light ................................................ 4-2MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
Multi-function display ..................................................... 4-5NNeutral indicator light ..................................................... 4-2OOn-Command differential gear lock switch .................... 4-9
On-Command four-wheel-drive switch ........................... 4-8
Override switch .............................................................. 4-7
Owner’s manual and tool kit ........................................... 8-2PPanels, removing and installing ................................... 8-10
Park indicator light ......................................................... 4-3
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1RRear brake lever and pedal free play,
and pedal height, adjusting ........................................ 8-41
Rear knuckle pivots, lubricating ................................... 8-50Reverse indicator light ................................................... 4-3
Riding your ATV ............................................................. 7-1
SSafety information .......................................................... 2-1
Seat ............................................................................. 4-18
Shock absorber assemblies, adjusting the front and
rear ............................................................................ 4-22
Spark arrester, cleaning ............................................... 8-33
Spark plug, checking ................................................... 8-14
Specifications ............................................................... 10-1
Speed limiter ................................................................ 4-12
Stabilizer bushes, checking ......................................... 8-50
Starter (choke) ............................................................. 4-18
Start switch .................................................................... 4-7
Steering shaft, lubricating ............................................ 8-50
Storage .......................................................................... 9-2
Storage compartments ................................................ 4-19TTail/brake light bulb, replacing ..................................... 8-57
Throttle lever ......................................................... 4-12, 5-4
Throttle lever free play, adjusting ................................. 8-37
Tires ............................................................................... 5-4
Troubleshooting ........................................................... 8-60
Troubleshooting charts ................................................ 8-61VValve clearance ........................................................... 8-38
V-belt case drain plug .................................................. 8-35
V-belt cooling duct check hose .................................... 8-35
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-48
Wheel, installing ........................................................... 8-59
U1CT60E0.book Page 2 Monday, May 31, 2010 10:05 AM