Installing The Oil Pump And Balancer Gear - Yamaha WR250R Service Manual
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Also See for WR250R:
- Owner's manual (100 pages) ,
- Owner's manual (96 pages) ,
- Owner's manual (98 pages)
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Recommended lubricant
Engine oil
2. Install:
Oil pump housing "1"
G
Relief valve assembly
G
Driven gear "2"
G
Dowel pin "3"
G
Outer rotor "4"
G
Inner rotor "5"
G
Oil pump cover
G
Oil pump cover screw
2 Nm (0.2 m•kg, 1.4 ft•lb)
3
1
2
3. Check:
Oil pump operation
G
Refer to "CHECKING THE OIL PUMP" on
page 5-47.
EAS32D1008
INSTALLING THE OIL PUMP AND
BALANCER GEAR
1. Install:
Oil pump assembly
G
Oil pump bolt
10 Nm (1.0 m•kg, 7.2 ft•lb)
ECA13890
CAUTION:
After tightening the bolts, make sure the oil
pump turns smoothly.
2. Install:
Drive gear "1"
G
Buffer boss "2"
G
Dowel pin "3"
G
Spring "4"
G
(to driven gear)
NOTE:
Align mark "a" of the drive gear with slot "b" of
G
the buffer boss.
Install the dowel pin on the spring as shown.
G
OIL PUMP AND BALANCER GEAR
3. Install:
NOTE:
Align mark "a" of the drive gear with mark "b" of
the balancer shaft weight gear during assem-
bling.
4
5
4. Tighten:
5. Tighten:
NOTE:
Insert aluminum plate "a" between drive gear "2"
and balancer weight gear "3", and tighten the pri-
mary drive gear nut.
5-48
3
4
3
b
a
3
Drive gear "1"
G
Balancer weight gear "2"
G
Lock washer "3"
New
G
Balancer weight gear nut "4"
G
a
1
Primary drive gear nut
G
Refer to "CLUTCH" on page 5-34.
Balancer weight gear nut "1"
G
Blancer weight gear nut
50 Nm (5.0 m•kg, 36 ft•lb)
4
1
3
4
2
4
b
2
4
3
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