Yamaha KODIAK 400 Owner's Manual page 130

3. If the oil is below the brim of the filler hole,
add sufficient oil of the recommended
type to raise it to the correct level.
CAUTION:
_
Be sure no foreign material enters the final
gear case.
_
4. Install the oil filler bolt.
Final gear oil replacement
1. Remove the final gear case cover by re-
moving the bolts.
1. Final gear case cover
2. Place the machine on a level surface.
3. Place a container under the final gear
case to collect the used oil.
4. Remove the oil filler bolt and the drain
bolt to drain the oil.
8-19
2. Bolt (× 2)