Checking The Oil Pump - Yamaha YJ125S Service Manual

a
3
b
1
2
1
c
5-54
OIL PUMP
EAS00364

CHECKING THE OIL PUMP

1. Check:
8 oil pump driven gear 1
Cracks/damage/wear
fective part(s).
2. Measure:
8 inner-rotor-to-outer-rotor-tip clearance a
8 outer-rotor-to-oil-pump-housing clear-
ance b
8 oil-pump-housing-to-inner-rotor-and-
outer-rotor clearance c
Out of specification
pump.
1 Inner rotor
2 Outer rotor
3 Oil pump housing
Inner-rotor-to-outer-rotor-tip clear-
ance
0.15 mm (0.006 in)
<Limit>: 0.23 mm (0.009 in)
Outer-rotor-to-oil-pump-housing
clearance
0.013 ~ 0.036 mm
(0.0005~0.0014 in)
<Limit>: 0.106 mm (0.0042 in)
Oil-pump-housing-to-inner-rotor-
and-outer-rotor clearance
0.06 ~ 0.10 mm (0.002~0.004 in)
<Limit>: 0.17 mm (0.0067 in)
ENG
Replace the de-
Replace the oil