Yamaha GRIZZLY ULTRAMATIC YFM660FP Owner's Manual page 316

1. Differential gear case oil drain bolt
1. Boulon de vidange de l'huile de différentiel
1. Perno de drenaje de aceite de engranajes del diferencial
Differential gear oil replacement
1. Place the machine on a level place.
2. Place a container under the differential gear
case to catch the oil.
3. Remove the filler bolt and drain bolt to drain
the oil.
4. Install the drain bolt and tighten it to the spec-
ified torque.
Tightening torque:
Drain bolt:
10 Nm (1.0 m·kgf)
8-51