Yamaha TT-R125EY, Service Manual

Page: 143 / 258

4-50
ENG
OIL PUMP
2. Measure:
• Tip clearance
A
(between the inner rotor
1
and the outer
rotor
2
)
• Side clearance B
(between the outer rotor
2
and the oil
pump housing
3
)
Out of specification
→
Replace the oil
pump assembly.
• Housing and rotor clearance
C
(between the pump housing
3
and the
rotors
1 2
)
Out of specification
→
Replace the oil
pump assembly.
INSPECTION
Oil pump
1. Inspect:
• Oil pump drive gear
• Oil pump driven gear
• Oil pump housing
• Oil pump cover
Cracks/wear/damage
→
Replace.
Rotary filter
1. Inspect:
• Rotary filter
Cracks/damage
→
Replace.
Tip clearance
A
:
0.15 mm (0.0059 in)
<Limit>: 0.20 mm (0.0079 in)
Side clearance
B
:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
<Limit>: 0.15 mm (0.0059 in)
Housing and rotor clearance C :
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
<Limit>: 0.15 mm (0.0059 in)