Yamaha GRIZZLY 125 YFM125GT Owner's Manual page 100

cC
8 Do not use oils with a diesel specification
of "CD" or oils of a higher quality than
specified. In addition, do not use oils
labeled "ENERGY CONSERVING II" or
higher.
8 Be sure no foreign material enters the
crankcase.
Recommended engine oil type and quantity:
See page 10-2.
Recommended final transmission oil type
and quantity:
See page 10-2.
5-13