2012 YAMAHA GRIZZLY 450 light

8-61
8
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

10-4
10
Front wheel:Wheel type:YFM450FAPB Panel wheel
YFM45FGPB (cast wheel model) Cast wheel
YFM45FGPB (panel wheel model) Panel wheel
YFM45FGPHB Panel wheel
Rim size:
12 x 6.0ATRear wheel:Wheel type:YFM450FAPB Panel wheel
YFM45FGPB (cast wheel model) Cast wheel
YFM45FGPB (panel wheel model) Panel wheel
YFM45FGPHB Panel wheel
Rim size:
12 x 7.5ATFront brake:Type:Disc brake
Operation:
Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:
Wet multiple disc brake
Operation: Left hand and right foot operationFront suspension:Type:
Double wishbone Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 160 mm (6.3 in)
Rear suspension:Type:Double wishbone
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)
U1CT61E0.book Page 4 Wednesday, April 20, 2011 6:36 PM

10-5
10
Neutral indicator light:LED
Reverse indicator light: LED
Coolant temperature warning light:
LED
Park 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 WFuses: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
EBU30400For EUR only
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
levels, this cannot be used reliably to determine
whether or not further precautions are required.
Factors that influence the actual level of exposure
of work-force include the characteristics of the
work room, the other sources of noise, etc. i.e. the
number of machines and other adjacent process-
es, and the length of time for which an operator is
exposed to the noise. Also the permissible expo-
sure level can vary from country. This information,
however, will enable the user of the machine to
make a better evaluation of the hazard and risk.
U1CT61E0.book Page 5 Wednesday, April 20, 2011 6:36 PM

INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-23
Air filter element, cleaning ............................................ 8-30
Axle boots .................................................................... 8-46BBattery .......................................................................... 8-51
Brake fluid, changing ................................................... 8-41
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 ........................ 8-48
Brake light switches ..................................................... 8-47
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 .......................................................... 8-54HHandlebar switches ....................................................... 4-6
Headlight beam, adjusting ........................................... 8-57
Headlight bulb, replacing ............................................. 8-55
High-range indicator light ............................................... 4-2
U1CT61E0.book Page 1 Wednesday, April 20, 2011 6:36 PM

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, adjusting the lever, pedal free play and
pedal height ............................................................... 8-41
Rear knuckle pivots, lubricating ................................... 8-50 Reverse 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 ............................................. 8-51
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 ........................................................... 8-61
Troubleshooting charts ................................................. 8-62VValve 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 ..................................... 8-49
Wheel, installing ........................................................... 8-59
U1CT61E0.book Page 2 Wednesday, April 20, 2011 6:36 PM