Checking The Oil Pump Drive Chain; Assembling The Oil Pump; Installing The Oil Pump; Checking The Relief Valve - Yamaha 2012 TMAX XP500A Service Manual

EAS24960
CHECKING THE OIL PUMP
1. Check:
• Oil pump driven gear "1"
• Oil pump housing 2 "2"
• Oil pump housing 1 "3"
Cracks/damage/wear → Replace the oil
pump assembly.
2. Check:
• Oil pump operation
Rough movement → Repeat steps (1)
and (2) or replace the oil pump assembly.
EAS24971

CHECKING THE RELIEF VALVE

1. Check:
• Relief valve body
Damage/wear → Replace.
EAS4B51030
CHECKING THE OIL PIPES
1. Check:
• Oil pipe
• Oil delivery pipe
Damage → Replace.
Obstruction → Wash and blow out with
compressed air.
EAS4B51031

CHECKING THE OIL PUMP DRIVE CHAIN

1. Check:
• Oil pump drive chain
Cracks/stiffness → Replace the oil pump
chain and oil pump assembly as a set.
EAS25000

ASSEMBLING THE OIL PUMP

1. Lubricate:
• Inner rotor
• Outer rotor
• Oil pump shaft
(with the recommended lubricant)
Recommended lubricant
Engine oil
2. Install:
• Inner rotors
TIP
When installing the inner rotor, align the pins
"1" in the oil pump shaft with the grooves "a" in
the inner rotor.
1
a
3. Check:
• Oil pump operation
Refer to "CHECKING THE OIL PUMP" on
page 5-67.
EAS25020

INSTALLING THE OIL PUMP

1. Install:
• Oil pump assembly
Oil pump bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
5-67
OIL PUMP
1
a