brake YAMAHA YFZ450 2012 Service Manual

8-54
82. Remove the burnt-out bulb by pushing it in
and turning it counterclockwise. 3. Insert a new bulb into the bulb holder, push it
in, and then turn it clockwise until it stops.
4. Install the bulb holder (together with the bulb) by turning it clockwise.
EBU25651Removing a wheel 1. Place the ATV on a level surface.
2. Loosen the wheel nuts.
1. Tail/brake light bulb holder
1
1. Tail/brake light bulb holder
2. Tail/brake light bulb
U1PD60E0.book Page 54 Monday, June 13, 2011 2:57 PM

9-1
9
EBU25860
CLEANING AND STORAGE
EBU25902Cleaning 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 toprevent 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 chain, sprockets or wheel ax-
les.
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. Dry the chain and lubricate it to prevent it from rusting.
7. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy.
8. 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.
U1PD60E0.book Page 1 Monday, June 13, 2011 2:57 PM

10-4
10
Rim size:9 x 8.0ATFront brake:Type:
Disc brake
Operation: Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:Disc brake
Operation: Right foot operation
Specified brake fluid:
DOT 4Front suspension:Type:Double wishbone
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 230 mm (9.1 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 270 mm (10.6 in)
Electrical system:Ignition system:DC CDI
Charging system:
AC magnetoBattery:Model:GT7B-4
Voltage, capacity:
12 V, 6.5 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:
12 V, 1.7 W × 1
Coolant temperature warning light: 12 V, 1.7 W × 1Fuses:Main fuse:
15.0 A
U1PD60E0.book Page 4 Monday, June 13, 2011 2:57 PM

INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-24BBattery .......................................................................... 8-48
Brake and clutch levers, checking and lubricating ....... 8-44
Brake fluid, changing ................................................... 8-36
Brake fluid level, checking ........................................... 8-33
Brake lever ..................................................................... 4-5
Brake lever free play, checking the front ...................... 8-36
Brake light switches ..................................................... 8-38
Brake pads, checking the front and rear ...................... 8-32
Brake pedal .................................................................... 4-6
Brake pedal, checking and lubricating ......................... 8-45
Brake pedal height, checking ....................................... 8-36
Brakes .......................................................................... 8-32
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-43
Carburetor, adjusting ................................................... 8-30
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-5
Clutch lever free play, adjusting ................................... 8-39
Coolant .................................................................. 5-4, 8-20
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-5Drive chain, lubricating ................................................ 8-43
Drive chain slack .......................................................... 8-41
EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-30
Engine oil ....................................................................... 5-4
Engine oil and oil filter element .................................... 8-14
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-3FFuel ......................................................................... 4-8, 5-4
Fuel cock ..................................................................... 4-10
Fuel tank cap ................................................................. 4-8
Fuse, replacing ............................................................ 8-50HHandlebar switches ....................................................... 4-3
Headlight beam, adjusting ........................................... 8-53
Headlight bulb, replacing ............................................. 8-51IIdentification numbers .................................................. 11-1
Indicator light and warning light ..................................... 4-2
Instruments, lights and switches .................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-3MMain switch .................................................................... 4-1
U1PD60E0.book Page 1 Monday, June 13, 2011 2:57 PM

Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2NNeutral indicator light ..................................................... 4-2OOwner’s manual and tool kit ........................................... 8-2PPanel, removing and installing ....................................... 8-9
Parking ........................................................................... 6-5
Parking brake free play, adjusting ................................ 8-37
Parking brake lever ........................................................ 4-6
Parking on a slope ......................................................... 6-6
Part locations ................................................................. 3-1RRiding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-12
Shifting ........................................................................... 6-3
Shift pedal ...................................................................... 4-7
Shift pedal, checking .................................................... 8-45
Shock absorber assemblies, adjusting the front .......... 4-13
Shock absorber assembly, adjusting the rear .............. 4-14
Spark arrester, cleaning ............................................... 8-28
Spark plug, checking .................................................... 8-10
Specifications ............................................................... 10-1
Speed limiter .................................................................. 4-4
Starter (choke) ............................................................. 4-11
Start switch ..................................................................... 4-3
Steering shaft, lubricating ............................................. 8-47
Storage ........................................................................... 9-2 Suspension, lubricating the upper and lower arm
pivots ......................................................................... 8-46
Swingarm pivots, lubricating ........................................ 8-46
TTail/brake light bulb, replacing ..................................... 8-53
Throttle lever ........................................................... 4-3, 5-5
Throttle lever free play, adjusting ................................. 8-31
Tires ............................................................................... 5-5
Troubleshooting ........................................................... 8-55
Troubleshooting charts ................................................. 8-57VValve clearance ............................................................ 8-31
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-45
Wheel, installing ........................................................... 8-55
Wheel, removing .......................................................... 8-54
U1PD60E0.book Page 2 Monday, June 13, 2011 2:57 PM