Yamaha VIKING Owner's Manual page 129

4. Install the differential gear oil drain bolt
and its new gasket, and then tighten the
bolt to the specified torque.
Tightening torque:
Differential gear oil drain bolt:
9.8 Nm (0.98 m·kgf, 7.1 ft·lbf)
5. Refill the differential gear case with the
recommended oil. NOTICE: Be sure no
foreign material enters the differential
gear case.
Recommended oil:
SAE 80 API GL-4 Hypoid gear oil
Oil quantity:
0.18 L (0.19 US qt, 0.16 Imp.qt)
6. Check the oil filler bolt gasket for dam-
age, and replace it if necessary.
7. Install the differential gear oil filler bolt
and its gasket, and then tighten the bolt
to the specified torque.
Tightening torque:
Differential gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
8. Check for oil leakage. If oil leakage is
found, check for the cause.
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