2009 YAMAHA YFZ450 Owners Manual

11-2
1
2
3
4
5
6
7
8
9
1011

The year of manufacture is listed in the vehicle
identification number as shown in the illustration.
TIP

The vehicle identification number is used to identi-
fy your ATV.
EBU26050
Model label
The model label is affixed at the location in the il-
lustration. Record the information on this label in
the space provided. This information will be need-
ed when ordering spare parts from a Yamaha deal-
er.
1. Vehicle identification number
1

1. Vehicle identification number
2. Year of manufacture

11-3
1
2
3
4
5
6
7
8
9
1011

1. Model label
1

INDEX
A
Accessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-24
B
Battery .......................................................................... 8-47
Brake and clutch levers, checking and lubricating ....... 8-44
Brake and shift pedals, checking and lubricating ......... 8-45
Brake fluid, changing.................................................... 8-35
Brake fluid level, checking............................................ 8-32
Brake lever ..................................................................... 4-5
Brake lever free play, checking the front ...................... 8-36
Brake light switches ..................................................... 8-39
Brake pads, checking the front and rear ...................... 8-31
Brake pedal .................................................................... 4-6
Brake pedal position, checking .................................... 8-36
Brakes, front and rear .................................................... 5-3
C
Cables, checking and lubricating ................................. 8-43
Carburetor, adjusting.................................................... 8-29
Chassis fasteners........................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-5
Clutch lever free play, adjusting ................................... 8-39
Coolant ................................................................. 5-3
,
8-20
Coolant temperature warning light ................................. 4-1
D
Drive chain ..................................................................... 5-4
Drive chain, lubricating ................................................. 8-43
Drive chain slack .......................................................... 8-41
E
Engine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-30
Engine oil ....................................................................... 5-3
Engine oil and oil filter element .................................... 8-14
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-2
F
Fuel ........................................................................ 4-8
,
5-3
Fuel cock ........................................................................ 4-9
Fuel tank cap.................................................................. 4-7
Fuse, replacing............................................................. 8-49
H
Handlebar switches ........................................................ 4-2
Headlight beam, adjusting............................................ 8-52
Headlight bulb, replacing.............................................. 8-50
I
Identification numbers .................................................. 11-1
Indicator light and warning light...................................... 4-1
Instruments, lights and switches .................................... 5-7

K
Key identification number ............................................. 11-1
L
Label locations ............................................................... 2-1
Light switch .................................................................... 4-3
M
Main switch .................................................................... 4-1
Maintenance and lubrication chart ................................. 8-5
Maintenance chart, emission control system ................. 8-3
Model label ................................................................... 11-2
N
Neutral indicator light ..................................................... 4-1
O
Owner’s manual and tool kit ........................................... 8-1
P
Panel, 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 ................................................................. 3-1
Pre-operation check list.................................................. 5-1
R
Riding your ATV ............................................................. 7-1
S
Safety information .......................................................... 1-1
Seat .............................................................................. 4-11
Shifting ........................................................................... 6-3
Shift pedal ...................................................................... 4-7
Shock absorber assemblies, adjusting the front .......... 4-12
Shock absorber assembly, adjusting the rear .............. 4-17Spark arrester, cleaning ............................................... 8-28
Spark plug, checking .................................................... 8-10
Specifications ............................................................... 10-1
Speed limiter .................................................................. 4-4
Starter (choke) ............................................................. 4-10
Start switch..................................................................... 4-3
Storage........................................................................... 9-2
Suspension, lubricating the upper and lower arm
pivots.......................................................................... 8-46
Swingarm pivots, lubricating ........................................ 8-45
T
Tail/brake light bulb, replacing ..................................... 8-53
Throttle cable free play, adjusting ................................ 8-30
Throttle lever .......................................................... 4-3
,
5-4
Tire pressure, measuring ............................................... 5-5
Tires ............................................................................... 5-4
Tire wear limit ................................................................. 5-6
Troubleshooting ........................................................... 8-54
Troubleshooting charts................................................. 8-55
V
Valve clearance............................................................ 8-31
Vehicle identification number ....................................... 11-1
W
Wheel hub bearings, checking ..................................... 8-45
Wheel, installing ........................................................... 8-53
Wheel, removing .......................................................... 8-53

PRINTED IN JAPAN
2008.03-0.5x3 !
(E)
YAMAHA MOTOR CO., LTD.
PRINTED ON RECYCLED PAPER