Oil Pump Inspection; Rotary Filter And Oil Strainer - Yamaha TT-R50E Owner's Service Manual

OIL PUMP
INSPECTION
Oil pump
1. Measure:
• Inner-rotor-to-outer-rotor tip clearance a
(between the inner rotor 1 and the outer
rotor 2)
• Outer-rotor-to-oil-pump housing clear-
ance b
(between the outer rotor 2 and the rotor
housing 3)
Out of specification → Replace the oil
pump assembly.
• Oil-pump-housing-to-inner-and-outer-
rotor clearance c (between the rotor
housing 3 and the rotors 1 2)
Out of specification → Replace the oil
pump assembly.
Inner-rotor-to-outer-rotor tip
clearance a:
0.15 mm or less
(0.0061 in or less)
<Limit>: 0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump housing
clearance b:
0.07 mm
(0.0028 in)
<Limit>: 0.15 mm (0.0059 in)
Oil-pump-housing-to-inner-and-
outer-rotor clearance c:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
<Limit>: 0.17 mm (0.0067 in)

Rotary filter and oil strainer

1. Inspect:
• Oil strainer 1
Damage → Replace.
2 Upper side
3 Lower side
4 - 41
ENG