Yamaha YFM4FGW Owner's Manual page 110

To change the final gear oil
1. Remove the engine guard and the final gear
case guard by removing the bolts.
1. Engine guard
2. Final gear case guard
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3. Bolt
2. Place the ATV on a level surface.
3. Place an oil pan under the final gear case to
collect the used oil.
4. Remove the final gear oil filler bolt and the fi-
nal gear oil drain bolt to drain the oil from the
final gear case.
1. Final gear oil drain bolt
5. 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)
6. Add the recommended final gear oil to the
brim of the filler hole as shown.
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