2004 YAMAHA YZ450F diagram

2 - 21
SPECCABLE ROUTING DIAGRAM
EC240000
CABLE ROUTING DIAGRAM
1Fuel tank breather hose
2Oil tank breather hose
3Hot starter cable
4Radiator hose 4
5Clutch cable
6Cylinder head breather hose
7Radiator hose 1
8Hose guide
9Brake hose
0“ENGINE STOP” button lead
AClamp
BSub wire harness
CTPS (throttle position sen-
sor) lead
DNeutral switch lead
EOil hoseFRadiator breather hose
GCDI magneto lead
HCarburetor breather hose
IOverflow hose
ÅInsert the end of the fuel tank
breather hose into the hole in
the steering shaft cap.
ıPass the hot starter cable
between the cylinder head
breather hose, oil tank breather
hose and ignition coil, then on
the outside of the left engine
bracket.
ÇPass the clutch cable through the
cable guide.ÎPass the cylinder head breather
hose on the outside of the radia-
tor hose 1 and on the inside of the
radiator pipe (radiator hose 4).
‰Pass the clutch cable through the
cable guides.
ÏPass the clutch cable in front of
the lower radiator mounting boss.
ÌFit the brake hose into the
guides on the protector.
ÓFasten the “ENGINE STOP”
button lead and sub wire har-
ness to the frame at the protect-
ing tube of the sub wire harness
with a plastic locking tie and cut
off the tie end.
B
0
C-C
D-D
B
A
AB
DD
CC
F
D G
F
D
◊
A
G
A
A
F
AE
A
DC A A A A B A 0
1
2
3
4 5 6 7 89
‰
̉
Ï
‰
Î
Çı ÅÊÓ
È
Ô

Ò

A ˜
ˆ
Ø ∏ Œ ÂÍ
Ë HIH
E

2 - 22
SPECCABLE ROUTING DIAGRAM
ÈFasten the “ENGINE STOP”
button lead and sub wire har-
ness to the frame at the pro-
tecting tube for the “ENGINE
STOP” button lead with a plas-
tic locking tie and cut off the tie
end.
ÔFasten the sub wire harness
and hot starter cable to the
frame at the white tape for the
sub wire harness with a plastic
locking tie and cut off the tie
end.
Fasten the sub wire harness to
the frame with a plastic locking
tie and cut off the tie end.
ÒPass the sub wire harness
between the engine brackets.˜Make sure that the TPS cou-
pler does not go outside the
chassis.
ˆFasten the TPS lead to the
frame with a plastic band.
ØFasten the neutral switch lead
and oil hose together with a
plastic locking tie and cut off
the tie end.
∏Fasten the neutral switch lead
to the frame with a plastic
band.
ŒFasten the neutral switch lead,
CDI magneto lead and radiator
breather hose to the frame with
a plastic band.ÂFasten the neutral switch lead,
CDI magneto lead and radiator
breather hose to the frame with
a plastic locking tie and cut off
the tie end.
ÍPass the neutral switch lead,
CDI magneto lead and radiator
breather hose between the
radiator and frame.
ÊFasten the neutral switch lead
and CDI magneto lead to the
cable guide at their protecting
tubes with a plastic locking tie
and cut off the tie end.
ËPass the carburetor breather
hoses and overflow hose so
that all there hoses do not con-
tact the rear shock absorber.
B
0
C-C
D-D
B
A
AB
DD
CC
F
D G
F
D
◊
A
G
A
A
F
AE
A
DC A A A A B A 0
1
2
3
4 5 6 7 89
‰
̉
Ï
‰
Î
Çı ÅÊÓ
È
Ô

Ò

A ˜
ˆ
Ø ∏ Œ ÂÍ
Ë HIH
E

2 - 23
SPEC
◊Position the neutral switch lead, CDI magneto
lead and radiator breather hose at the left of the
frame.
B
0
C-C
D-D
B
A
AB
DD
CC
F
D G
F
D
◊
A
G
A
A
F
AE
A
DC A A A A B A 0
1
2
3
4 5 6 7 89
‰
̉
Ï
‰
Î
Çı ÅÊÓ
È
Ô

Ò

A ˜
ˆ
Ø ∏ Œ ÂÍ
Ë HIH
E
CABLE ROUTING DIAGRAM

2 - 24
SPECCABLE ROUTING DIAGRAM
1CDI unit
2Hot starter cable
3Throttle cable (return)
4Throttle cable (pull)
5Ignition coil
6Radiator breather hose
7Radiator hose 4
8Cylinder head breather
hose
9CDI unit bracket
0CDI unit bandÅPass the hot starter cable and
throttle cables through the cable
guides.
ıPass the hot starter cable over the
top radiator mounting boss.
ÇPass the hot starter cable and
throttle cables between the radia-
tor and frame, then over the mid-
dle radiator mounting boss.
ÎPass the throttle cables on the
outside of the ignition coil.
‰Pass the carburetor breather hose
(throttle cable cover) through the
hose holder.
ÏPass the radiator breather hose at
the rear of the radiator, on the left
of the chassis, and then between
the frame and radiator hose 4.ÌInsert the CDI unit band over the
CDI unit bracket as far as possi-
ble.
ÓFirst install the CDI unit and CDI
unit band to the CDI unit bracket,
then the CDI unit bracket to the
frame.
8
761
09
1
52
3
4
Å
ı
Ç
Î ‰ÏB
A
A
B
Ì
Ó

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SPECCABLE ROUTING DIAGRAM
1Master cylinder
2Brake hose holder
3Brake hoseÅInstall the brake hose so that its
pipe portion directs as shown and
lightly touches the projection on
the caliper.
ıPass the brake hose into the
brake hose holders.
ÇIf the brake hose contacts the
spring (rear shock absorber), cor-
rect its twist.
ÎInstall the brake hose so that its
pipe portion directs as shown and
lightly touches the projection on
the master cylinder.

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SPECCABLE ROUTING DIAGRAM
1Throttle cable
2Fuel tank breather hose
3Clamp
4Clutch cable
5Hot starter cable
6“ENGINE STOP” button lead
7Brake hose
8Hose guideÅFasten the “ENGINE STOP” but-
ton lead to the handlebar with the
plastic band.
ıPass the brake hose in front of the
number plate.
3
6
40˚±10˚
A
12
3
4
5
6
7
8 Å
ı
A

4 - 18
ENGCARBURETOR
15. Install:
Jet needle 1
Collar 2
Spring 3
Needle holder 4
Throttle valve plate 5
To throttle valve 6.
5
6
1
2
3
4
16. Install:
Throttle valve assembly 1
Screw (throttle shaft) 2
NOTE:
Install the valve lever rollers 3 into the slits a
of the throttle valve.
17. Install:
O-ring 1
Valve lever housing cover 2
Bolt (valve lever housing cover) 3
18. Install:
Carburetor breather hose 1
Refer to “CABLE ROUTING DIAGRAM”
section in the CHAPTER 2.

4 - 79
ENG
MAGNETO CDI
CDI-SCHWUNGRADMAGNETZÜNDER
4. Anschließen:
CDI-Schwungradmagnetzünder-Kabel
Siehe unter “KABELFÜHRUNG” im KA-
PITEL 2.
5. Montieren:
Paßstift
Dichtung [Kurbelgehäusedeckel (links)]
Kurbelgehäusedeckel (links) 1
Halterung (Zylinderkopf-Entlüftungs-
schlauch) 2
Schraube [Kurbelgehäusedeckel (links)]
HINWEIS:
Die Schrauben stufenweise über Kreuz fest-
ziehen.
New
T R..10 Nm (1,0 m · kg, 7,2 ft · lb)
4. Connecter:
Fil de magnéto CDI
Se référer au paragraphe “DIAGRAMME
DE CHEMINEMENT DE CABLE” au
CHAPITRE 2.
5. Monter:
Goujon
Joint [couvercle de carter (gauche)]
Couvercle de carter (gauche) 1
Support de flexible (reniflard de culasse) 2
Boulon [couvercle de carter (gauche)]
N.B.:
Serrer les vis par étapes dans un ordre entrecroisé.
New
T R..10 Nm (1,0 m · kg, 7,2 ft · lb)