Yamaha Ultramatic GRIZZLY 660 Owner's Manual page 178

Final gear case oil:
Type
Quantity:
Periodic oil change
Total amount
Differential gear case oil:
Type
Quantity:
Periodic oil change
Total amount
Air filter:
Fuel:
Type
Fuel tank capacity
Fuel reserve amount
Carburetor:
Type / quantity
Manufacturer
Model
SAE80 API "GL-4" Hypoid gear oil
0.25 L (0.22 Imp qt, 0.26 US qt)
0.30 L (0.26 Imp qt, 0.32 US qt)
SAE80 API "GL-4" Hypoid gear oil
0.28 L (0.25 Imp qt, 0.30 US qt)
0.33 L (0.29 Imp qt, 0.35 US qt)
Wet type element
UNLEADED GASOLINE ONLY
20 L (4.40 lmp gal, 5.28 US gal)
3.5 L (0.77 lmp gal, 0.92 US gal)
BSR42 / 1
MIKUNI
10-3
YFM660F