Yamaha YFM66FGX Owner's Manual page 118

1. Final gear oil filler bolt
4. Install the oil level check bolt and oil filler bolt,
and then tighten them to the specified torques.
8
Tightening torques:
Final gear oil level check bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
To change the final gear oil
1. Place the ATV on a level surface.
2. Place an oil pan under the final gear case to
collect the used oil.
3. Remove the final gear oil filler bolt, final gear
oil level check bolt, and the final gear oil drain
bolt to drain the oil from the final gear case.
1. Final gear oil drain bolt
4. Install the drain bolt, and then tighten it to the
specified torque.
Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
5. Add the recommended final gear oil to the
brim of the check hole as shown.
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