Honda FourTrax Rincon TRX680FA5 2018 Owner's Manual page 133

1. Park the ATV on level ground.
2. Place an oil drain pan under the oil drain bolt (1).
3. Remove the oil fill cap (2), O-ring, drain bolt and sealing washer.
4. After the oil has completely drained, reinstall the drain bolt with
a new sealing washer and tighten it to the specified torque:
12 N·m (1.2 kgf·m , 9 lbf·ft)
5. Pour the drained oil into a suitable container and dispose of it in
an approved manner (page 184).
NOTICE
Improper disposal of drained fluids is harmful to the environment.
6. Fill the rear final gear case with the recommended oil.
80 cm (2.7 US oz , 2.8 Imp oz)
3
7. Make sure the oil level is at the lower edge of the inspection hole (3).
8. Coat a new O-ring with grease and install it into the fill cap
groove and tighten it to the specified torque:
12 N·m (1.2 kgf·m , 9 lbf·ft)
REAR
(1) oil drain bolt
(2) oil fill cap
(3) lower edge of the inspection hole
Rear Final Gear Oil
(3)
(2) (1)
Servicing Your Honda 123