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Yamaha TT-R125EW Owner's Service Manual Page 167

Lit-11626-20-01; 1b2-f8199-12.
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OIL PUMP
INSPECTION
Oil pump
1. Inspect:
Oil pump drive gear
Oil pump driven gear
Oil pump housing
Oil pump cover
Cracks/wear/damage → Replace.
2. Measure:
Tip clearance Å
(between the inner rotor 1 and the
outer rotor 2)
Side clearance ı
(between the outer rotor 2 and the oil
pump housing 3)
Out of specification → Replace the oil
pump assembly.
Housing and rotor clearance Ç
(between the pump housing 3 and the
rotors 1 2)
Out of specification → Replace the oil
pump assembly.
Tip clearance Å:
0.15 mm (0.0059 in)
<Limit>: 0.20 mm (0.0079 in)
Side clearance ı:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
<Limit>: 0.15 mm (0.0059 in)
Housing and rotor clearance Ç:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
<Limit>: 0.15 mm (0.0059 in)
Rotary filter
1. Inspect:
Rotary filter
Cracks/damage → Replace.
4 - 51
ENG

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