6-19
FRONT FORK
The bending value is shown by one
half of the dial gauge reading.
Do not attempt to straighten a bent
inner tube as this may dangerous-
ly weaken the tube.
CHECKING THE OUTER TUBE
1. Inspect:
• Outer tube "1"
Score marks/wear/damage
→
Re-
place.
CHECKING THE FRONT FORK
CAP BOLT
1. Inspect:
• Front fork cap bolt "1"
• O-ring "2"
• Air bleed screw "3"
Wear/damage
→
Replace.
ASSEMBLING THE FRONT FORK
1. Wash the all parts in a clean sol-
vent.
2. Install:
• Damper rod "1"
To inner tube "2".
To install the damper rod into the
inner tube, hold the inner tube
aslant. If the inner tube is held ver-
tically, the damper rod may fall into
it, damaging the valve inside.
3. Install:
• Copper washer "1"
• O-ring "2"
• Base valve "3"
To inner tube "4".
4. Tighten:
• Base valve "1"
• Use a damper rod holder "2" to lock
the damper rod "3".
• Apply the LOCTITE
®
on the base
valve thread.
5. Install:
• Spring guide "1"
• Locknut "2"
To damper rod "3".
• Install the spring guide with its
smaller dia.end "a" facing down-
ward.
• With its thread "b" facing upward,
fully finger tighten the locknut onto
the damper rod.
6. Install:
• Dust seal "1"
• Stopper ring "2"
• Oil seal "3"
• Oil seal washer "4"
• Slide metal "5"
To inner tube "6".
• Apply the fork oil on the inner tube.
• When installing the oil seal, use vi-
nyl seat "a" with fork oil applied to
protect the oil seal lip.
• Install the oil seal with its manufac-
ture's marks or number facing the
axle holder side.
• Install the oil seal washer with its
projections "b" facing upward.
7. Install:
• Piston metal "1"
Install the piston metal onto the slot
on inner tube.
Base valve:
55 Nm (5.5 m•kg, 40
ft•lb)
Damper rod holder:
YM-01494/90890-01494
Содержание WR450F(Y) 2009
Страница 4: ......
Страница 45: ......
Страница 47: ...2 19 LUBRICATION DIAGRAMS 1 Intake camshaft 2 Exhaust camshaft A To main axle B From oil pump ...
Страница 73: ...3 18 ENGINE INTAKE EXHAUST ...
Страница 86: ...3 31 ELECTRICAL Charging method using a variable voltage charger ...
Страница 87: ...3 32 ELECTRICAL Charging method using a constant voltage charger ...
Страница 103: ...5 5 CARBURETOR 13 Bracket cylinder head breather pipe 1 14 Carburetor joint 1 Order Part name Q ty Remarks ...
Страница 120: ...5 22 CYLINDER HEAD 3 Install Bolt cylinder head 1 Bolt cylinder head 10 Nm 1 0 m kg 7 2 ft lb ...
Страница 139: ...5 41 OIL PUMP 15 Oil pump drive shaft 1 16 Rotor housing 1 Order Part name Q ty Remarks ...
Страница 226: ...PRINTED IN JAPAN E PRINTED ON RECYCLED PAPER YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...