![Yamaha YZ450F(X) Owner'S Service Manual Download Page 84](http://html.mh-extra.com/html/yamaha/yz450f-x/yz450f-x_owners-service-manual_946383084.webp)
4-18
CAMSHAFTS
Do not turn the crankshaft during
the camshaft installation. Damage
or improper valve timing will re-
sult.
d. Install the clips, camshaft caps "4"
and bolts (camshaft cap) "5".
• Before removing the clips, cover the
cylinder head with a clean rag to
prevent the clips from into the cylin-
der head cavity.
• Apply the molybdenum disulfide oil
on the thread of the bolts (camshaft
cap).
• Tighten the bolts to the specified
torque in two or three steps in the
proper tightening sequence as
shown.
The bolts (camshaft cap) must be
tightened evenly, or damage to the
cylinder head, camshaft caps, and
camshaft will result.
2. Install:
• Timing chain tensioner
Installation steps:
a. While pressing the tensioner rod
lightly with fingers, use a thin
screwdriver and wind the tension-
er rod up fully clockwise.
b. With the rod fully wound and the
chain tensioner UP mark "a" fac-
ing upward, install the gasket "1",
the timing chain tensioner "2", and
the gasket "3", and tighten the bolt
"4" to the specified torque.
c. Release the screwdriver, check
the tensioner rod to come out and
tighten the gasket "5" and the cap
bolt "6" to the specified torque.
3. Turn:
• Crankshaft
Counterclockwise several turns.
4. Check:
• Rotor T.D.C. mark
Align with the crankcase align
mark.
• Camshaft match marks
Align with the cylinder head sur-
face.
Out of alignment
→
Adjust.
Bolt (camshaft cap):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Bolt (timing chain ten-
sioner):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Tensioner cap bolt:
7 Nm (0.7 m•kg, 5.1
ft•lb)
Summary of Contents for YZ450F(X)
Page 2: ......
Page 37: ...2 17 LUBRICATION DIAGRAMS 1 Intake camshaft 2 Exhaust camshaft A To main axle B From oil pump ...
Page 56: ...3 12 ENGINE INTAKE EXHAUST ...
Page 87: ...4 21 CYLINDER HEAD ...
Page 106: ...4 40 OIL PUMP 15 Oil pump drive shaft 1 16 Rotor housing 1 Order Part name Q ty Remarks ...
Page 156: ...5 29 STEERING 9 Bearing race 2 Refer to removal section Order Part name Q ty Remarks ...
Page 165: ...5 38 REAR SHOCK ABSORBER 12 Bearing 2 Refer to removal section Order Part name Q ty Remarks ...
Page 186: ......
Page 196: ...1 4 VERIFICATION DES CONNEXIONS ...
Page 223: ...2 18 DIAGRAMMES DE LUBRIFICATION ...
Page 243: ...3 13 MOTEUR ADMISSION ECHAPPEMENT ...
Page 260: ...4 6 RADIATEUR 11 Tuyau 1 Joint torique 1 1 Ordre Nom de la pièce Qté Remarques ...
Page 276: ...4 22 CULASSE 3 Monter Boulon culasse 1 Boulon culasse 10 Nm 1 0 m kg 7 2 ft lb ...
Page 290: ...4 36 EMBRAYAGE ...
Page 380: ......
Page 435: ...3 13 MOTOR EINLASS AUSLASS ...
Page 451: ...4 5 AUSPUFFKRÜMMER UND SCHALLDÄMPFER ...
Page 474: ...4 28 VENTILE UND VENTILFEDERN ...
Page 549: ...5 38 FEDERBEIN 12 Lager 2 Siehe den Abschnitt zum Ausbau Reihenfolge Bauteil Anz Bemerkungen ...
Page 572: ......
Page 573: ......