engine YAMAHA WR 450F 2004 Manual PDF

YAMAHA WR 450F 2004 Manual PDF WR 450F 2004 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52484/w960_52484-0.png YAMAHA WR 450F 2004 Manual PDF

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YAMAHA WR 450F 2004 Manual PDF 4 - 59
ENG
OIL FILTER, WATER PUMP AND CRANKCASE COVER
(RIGHT)
EC4G5220
Impeller shaft
1. Install:
Impeller shaft 1 
Plain washer 2 
Impeller 3 
NOTE:
Take care so that the oil seal lip is not dam-

Page 428 of 754

YAMAHA WR 450F 2004 Manual PDF 4 - 64
ENGBALANCER
ASSEMBLY AND INSTALLATION
Balancer, balancer drive gear and balancer
driven gear
1. Install:
Balancer 1 
NOTE:
When installing the balancer shaft, align the
center of the balancer

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YAMAHA WR 450F 2004 Manual PDF 4 - 67
ENGOIL PUMP
INSPECTION
Oil pump
1. Inspect:
Oil pump drive gear
Oil pump driven gear
Rotor housing
Oil pump cover
Cracks/wear/damage → Replace.
2. Measure:
Tip clearance a 
Between the i

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YAMAHA WR 450F 2004 Manual PDF 4 - 68
ENGOIL PUMP
2. Install:
Outer rotor 1 1 
NOTE:
Apply the engine oil on the outer rotor 1.
3. Install:
Oil pump cover 1 
Screw (oil pump cover) 2 
Pin 3 
Inner rotor 2 4 
Circlip 5 
NOTE:

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YAMAHA WR 450F 2004 Manual PDF 4 - 73
ENGKICK AXLE AND SHIFT SHAFT
EC4B5111
Stopper lever
1. Install:
Torsion spring 1 
Stopper lever 2 
Bolt (stopper lever) 3 
NOTE:
Align the stopper lever roller with the slot on
segment.
Shif

Page 448 of 754

YAMAHA WR 450F 2004 Manual PDF 4 - 74
ENGKICK AXLE AND SHIFT SHAFT
EC4C5301
Shift shaft
1. Install:
Roller 1 
Collar 2 
Torsion spring 3 
Shift shaft 4 
NOTE:
Apply the engine oil on the roller and shift
shaft.
2. Install:
Shi

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YAMAHA WR 450F 2004 Manual PDF 4 - 75
ENGKICK AXLE AND SHIFT SHAFT
3. Install:
Spring guide 1 
NOTE:
Slide the spring guide into the kick axle, make
sure the groove a in the spring guide fits on
the stopper of the torsion spring.

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YAMAHA WR 450F 2004 Manual PDF 4 - 76
ENGAC MAGNETO AND STARTER CLUTCH
AC MAGNETO AND STARTER CLUTCH
Extent of removal:1 Starter clutch/wheel gear removal2 Rotor removal
3 Pickup coil/stator removal
Extent of removal Order Part nam

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YAMAHA WR 450F 2004 Manual PDF 4 - 80
ENGAC MAGNETO AND STARTER CLUTCH
2. Install:
Holder 1 
Bolt 2 
NOTE:
Pass the pick-up coil lead 3 and AC mag-
neto lead 4 under the holder as shown.
Take care not to catch the AC magneto le

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YAMAHA WR 450F 2004 Manual PDF 4 - 81
ENG
5. Install:
Bolt (starter clutch) 1 
Plain washer (rotor)
Nut (rotor) 2 
Use the sheave holder 3.
NOTE:
Tighten the rotor nut to 65 Nm (6.5 m·kg,
47 ft·lb), loosen and retighten the ro