Yamaha YZ450FN 2022, Owner'S Service Manual, Page: 247 / 366

OIL PUMP
5-61
2. Install:
• Outer rotor “1”
TIP
Apply the engine oil on the outer rotor.
3. Install:
•
Oil pump cover “1”
• Oil pump cover bolt “2”
EAM30486
INSTALLING THE OIL PUMP
1. Install:
•
Oil pump assembly “1”
• Oil pump assembly bolt “2”
NOTICE
ECA13890
After tightening the bolts, make sure the oil
pump turns smoothly.
2. Install:
•
Balancer weight gear “1”
TIP
Install the balancer weight gear and balancer
shaft with their lower splines “a” aligning with
each other.
3. Install:
• Balancer drive gear “1”
TIP
•
Align the punched mark “a” on the balancer
drive gear with the punched mark “b” on the
balancer weight gear.
• Install the balancer drive gear and crankshaft
with the lower splines “c” aligning with each
other.
Oil pump cover bolt
6 N·m (0.6 kgf·m, 4.4 lb·ft)
LOCTITE®
Oil pump assembly bolt
5 N·m (0.5 kgf·m, 3.7 lb·ft)
LOCTITE®
2
1
3
1
E
T
R
.
.
2
1
LT
T
R
.
.
1 1 1
2 2
LT
1
1
c a
1 1
c
b
a
c
b
a