Yamaha YZ 2023 Series, Owner'S Service Manual

Page: 249 / 378

OIL PUMP
5-62
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:
•
Spring “1”
• Relief valve “2”
•
Pin “3”
TIP
• Install the spring “1” and relief valve “2”, and
pin “3”. After installing, make sure that the relief
valve “2” does not come loose.
•
Install the relief valve before installing the pri-
mary drive gear and collar.
2. Install:
•
Collar “1”
• Balancer weight gear “2”
TIP
Install the balancer weight gear and balancer
shaft with their lower splines “a” aligning with
each other.
3. Install:
•
Balancer drive gear “1”
• Collar “2”
TIP
•
Install the balancer drive gear and crankshaft
with the lower splines “a” aligning with each
other.
• Align the punched mark “b” on the balancer
drive gear with the punched mark “c” on the
balancer weight gear.
Oil pump cover bolt
6 N·m (0.6 kgf·m, 4.4 lb·ft)
LOCTITE®
2
1
3
1
E
T
R
.
.
2
1
LT
2
1
3
2
1
1
2