Honda TALON 2021 Owner's Manual page 160

Pour the drained oil into a suitable container and dispose of it in an
approved manner (page 221).
5. Reinstall the drain bolt and sealing washer, and tighten the bolt
to the specified torque:
21 lbf·ft (29 N·m, 3.0 kgf·m)
6. Fill the sub-transmission case with the recommended oil,
approximately:
1.35 US qt (1.28 ℓ)
7. Insert the dipstick without screwing it in, then remove the oil fill
cap/dipstick and check the oil level. Make sure the oil is between
the upper level mark and lower level mark on the dipstick. If
necessary, add more oil but do not overfill.
8. Reinstall the oil fill cap/dipstick.
9. Check that there are no oil leaks.
If a torque wrench is not used for installation, see your dealer as
soon as possible to verify proper assembly.
NOTICE
Improper disposal of drained fluids is harmful to the environment.
Sub-Transmission Oil
Servicing Your Honda 153