2009 YAMAHA WOLVERINE 450 warning

8-52
8 2. Remove the headlight bulb holder by pushing
it inward and turning it counterclockwise.3. Remove the defective bulb from the headlight
unit by pulling it out.
WARNING
EWB02220A headlight bulb is hot when it is on and imme-
diately after it is turned off. Wait for the bulb to
cool before touching or removing it. You can
be burned or a fire could start if the bulb touch-es something flammable.
4. Install a new headlight bulb into the headlight
unit by aligning the projection on the bulb with
the groove in the headlight unit.
1. Headlight bulb holder cover
1. Headlight bulb holder
1. Do not touch the glass part of the bulb.
U3C263E0.book Page 52 Thursday, May 15, 2008 10:44 AM

8-56
8 3. Lower the ATV to the ground.
4. Tighten the wheel nuts to the specified
torques.
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.
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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8-58
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.
U3C263E0.book Page 58 Thursday, May 15, 2008 10:44 AM

9-2
9
WARNING
EWB02310Wet 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 thelinings.EBU25932Storage Short-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover.NOTICEECB00720
Storing the ATV in a poorly ventilated room
or covering it with a tarp while it is still wet,
will allow water and humidity to seep in and
cause rust.
To prevent corrosion, avoid damp cellars,
stables (because of the presence of ammo-
nia) and areas where strong chemicals arestored.Long-term
Before storing your ATV for several months:
1. Follow all the instructions in the “Cleaning”
section of this chapter.
2. Turn the fuel cock lever to “OFF”.
3. Drain the carburetor float chamber by loosen-
ing the drain bolt; this will prevent fuel deposits
from building up. Pour the drained fuel into the
fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
ing.
5. Perform the following steps to protect the cyl-
inder, piston rings, etc. from corrosion.
a. Remove the spark plug cap and spark
plug.
b. Pour a teaspoonful of engine oil into the
spark plug bore. Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1 oz
of stabilizer to each gallon of fuel)
U3C263E0.book Page 2 Thursday, May 15, 2008 10:44 AM

10-4
10
Rear wheel:Wheel type:
Panel wheel
Rim size:
12 x 7.5ATFront brake:Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear brake:Type:
Single disc brake
Operation:
Left hand and right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
160 mm (6.3 in)Rear suspension:Type:
Swingarm
Spring/shock absorber type:
Coil spring/oil damperWheel 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
Neutral indicator light:
LED
Reverse indicator light:
LED
Coolant temperature warning light:
LED
Park indicator light:
LED
On-Command four-wheel-drive indicator:
LCD
U3C263E0.book Page 4 Thursday, May 15, 2008 10:44 AM

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-31
Axle boots .................................................................... 8-44BBattery .......................................................................... 8-47
Brake fluid, changing .................................................... 8-41
Brake fluid level, checking ............................................ 8-40
Brake lever free play and brake pedal position (rear),
adjusting and checking .............................................. 8-42
Brake lever free play, checking the front ...................... 8-42
Brake lever, front ............................................................ 4-8
Brake levers, checking and lubricating ......................... 8-46
Brake light switches ..................................................... 8-45
Brake pads, checking the front and rear ...................... 8-39
Brake pedal and rear brake lever ................................... 4-8
Brake pedal, checking and lubricating ......................... 8-46
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-45
Carburetor, adjusting .................................................... 8-36
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................. 5-3, 8-27
Coolant temperature warning light ................................. 4-2
Cowlings and panels, removing and installing ............... 8-9DDifferential gear oil ......................................................... 5-3Differential gear oil, changing ....................................... 8-25
Drive select lever ............................................................ 4-9
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ......... 8-39
EEngine 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 ......................................................... 4-4FFinal gear oil .......................................................... 5-3, 8-22
Four-wheel-drive indicator .............................................. 4-3
Fuel ......................................................................... 4-9, 5-3
Fuel cock ...................................................................... 4-10
Fuel tank cap .................................................................. 4-9
Fuses, replacing ........................................................... 8-50HHandlebar switches ........................................................ 4-4
Headlight beam, adjusting ............................................ 8-53
Headlight bulb, replacing .............................................. 8-51IIdentification numbers .................................................. 11-1
Indicator lights and warning light .................................... 4-2
Instruments, lights and switches .................................... 5-7
U3C263E0.book Page 1 Thursday, May 15, 2008 10:44 AM