2006 YAMAHA YFZ450 fuel cap

LOCATION OF THE WARNING AND
SPECIFICATION LABELS ..................1-1
SAFETY INFORMATION ..................... 2-1
DESCRIPTION AND MACHINE
IDENTIFICATION ............................... 3-1
Identification number records ............. 3-3
Key identification number ................... 3-5
Vehicle identification number ............. 3-5
Model label ......................................... 3-7
CONTROL FUNCTIONS ...................... 4-1
Main switch ......................................... 4-1
Indicator and warning lights ................ 4-3
Handlebar switches ............................ 4-7
Throttle lever .................................... 4-11
Speed limiter .................................... 4-13
Clutch lever ...................................... 4-15
Brake lever ....................................... 4-17Brake pedal ...................................... 4-17
Parking brake lever .......................... 4-19
Shift pedal ........................................ 4-21
Fuel tank cap .................................... 4-21
Fuel cock .......................................... 4-23
Starter (choke) ................................... 4-25
Seat .................................................. 4-27
Front shock absorber adjustment ..... 4-29
Rear shock absorber adjustment ..... 4-39
PRE-OPERATION CHECKS ................ 5-1
Front and rear brakes ......................... 5-7
Fuel .................................................. 5-13
Engine oil .......................................... 5-17
Coolant ............................................. 5-19
Chain ................................................ 5-21
Throttle lever .................................... 5-21
Tires ................................................. 5-23
How to measure tire pressure .......... 5-27
Tire wear limit ................................... 5-29
Fittings and fasteners ....................... 5-29
EBU00150
CONTENTS
1
2
3
4
5
5TG-9-62 1-3 5/13/05 10:06 AM Page 12

3-1
EBU00320
DESCRIPTION AND MACHINE
IDENTIFICATION
1. Seat 11. Tail/brake light
2. Fuel tank cap 12. Coolant reservoir
3. Radiator cap 13. Shift pedal
4. Oil filter element 14. Engine oil tank
5. Brake pedal 15. Clutch lever
6. Headlights 16 Handlebar switches
7. Fuel cock 17. Parking brake lever
8. Starter (choke) 18. Main switch
9. Throttle stop screw 19. Throttle lever
10. Fuse 20. Brake lever
NOTE:
The machine you have purchased may differ
slightly from those shown in the figures of this
manual.
5TG-9-62 1-3 5/13/05 10:06 AM Page 3-1

4-21
1. Shift pedal1. Pédale de sélection1. Pedal del cambio
1. Fuel tank cap
1. Bouchon de réservoir de carburant1. Tapón del depósito de combustible
EBU00820
Shift pedal
This machine is equipped with a constant-mesh
5-speed transmission. The shift pedal is located
on the left side of the engine and is used in com-
bination with the clutch when shifting.
EBU00920
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
5TG-9-62 4 5/12/05 5:18 PM Page 4-21

5-13
EBU14571
Fuel
Make sure there is sufficient gasoline in the tank.
NOTE:
If knocking or pinging occurs, use a different
brand of gasoline or higher octane grade.
cC
Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system.
Recommended fuel:
PREMIUM UNLEADED GASOLINE
ONLY
For Europe:
PREMIUM UNLEADED GASOLINE
ONLY with a research octane number
of 97 or higher
Fuel tank capacity:
Total:
10.0 L
Reserve:
1.9 L
5TG-9-62 5-6 5/13/05 1:45 PM Page 5-13

5-15
w
8Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.
8Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up
any spilled fuel immediately.
8Do not refuel right after the engine has
been running and is still very hot.
8Be sure the fuel tank cap is closed secure-
ly.q
w
1. Fuel tank filler tube 2. Fuel level1. Tube de remplissage du réservoir de carburant
2. Niveau de carburant
1. Tubo de llenado del depósito de combustible
2. Nivel de combustible
5TG-9-62 5-6 5/13/05 1:45 PM Page 5-15

8-55
EBU14142
Spark plug inspection
Removal
1. Remove the seat. (See page 4-27 for seat
removal and installation procedures.)
2. Remove the bolts and the quick fastener
screws.
3. Remove the fuel tank cap by turning it
counterclockwise.
w
8Always turn off the engine when removing
the fuel tank cap.
8Do not remove the fuel tank cap immedi-
ately after the engine has been running
and is still very hot.
8Do not spill gasoline on the engine,
exhaust pipe or muffler.
8Never remove the fuel tank cap while
smoking, or in the vicinity of sparks, open
flames, or other sources of ignition such
as the pilot lights of water heaters and
clothes dryers.
1. Panel 2. Bolt (×2)
3. Quick fastener screw (×2) 4. Fuel tank cap
1. Cache 2. Boulon (×2)
3. Vis à serrage rapide (×2)
4. Bouchon du réservoir de carburant
1. Panel 2. Perno (×2)
3. Perno del fijador rápido (×2)
4. Tapón del depósito de combustible
5TG-9-62 8 5/13/05 1:48 PM Page 8-55

8-57
4. Pull the panel backward, and then remove
it.
5. Install the fuel tank cap by turning it clock-
wise.
6. Remove the bolt, lift the rear of the fuel
tank, and then tilt it back.
w
Before lifting the fuel tank, make sure that
the fuel cock is in the “OFF” position and the
fuel tank cap is securely tightened.
Otherwise, fuel may leak out of the carbure-
tor or fuel tank.
7. Remove the spark plug cap.
1. Bolt1. Boulon1. Perno
1. Spark plug cap
1. Capuchon de bougie1. Tapa de bujía
5TG-9-62 8 5/13/05 1:48 PM Page 8-57

8-63
NOTE:
If a torque wrench is not available when you are
installing a spark plug, a good estimate of the
correct torque is 1/4 to 1/2 turn past finger tight.
Have the spark plug tightened to the specified
torque as soon as possible.
4. Install the spark plug cap.
cC
Do not use any tools to remove or install the
spark plug cap, otherwise the ignition coil
coupler may be damaged. The spark plug
cap may be difficult to remove because the
rubber seal on the end of the cap fits tightly.
To remove the spark plug cap, simply twist it
back and forth while pulling it out; to install
it, twist it back and forth while pushing it in.
5. Place the fuel tank in the original position,
and then install the bolt.
6. Remove the fuel tank cap by turning it
counterclockwise.
5TG-9-62 8 5/13/05 1:48 PM Page 8-63