Honda CB Unicorn 160 Owner's Manual page 61

If a torque wrench is not used for this
installation, see your Honda dealer as soon
as possible to verify proper assembly.
Change the engine oil with the engine
at normal operating
the vehicle on its center stand to assure
complete and rapid draining.
1. To drain the oil, remove the oil filler
cap/dipstick and oil drain bolt (1) and
sealing washer (2).
2. Operate the kickstarter several times
to aid in complete draining of the
remaining oil.
(1)
(1) Oil drain bolt
(2) Sealing washer
temperature and
(2)
3. Check that the sealing washer on the
drain bolt is in good condition and install
the bolt. Replace the sealing washer
every other time the oil is changed, or
each time if necessary.
Oil Drain Bolt Torque:
30 N·m (3.1 kgf·m , 22 lbf·ft)
4. Fill the crankcase with the recommended
grade oil; approximately:
1.0 L (1.0 US qt , 0.9 Imp qt)
5. Install the oil filler cap/dipstick.
6. Start the engine and let it idle for 3-5
minutes.
7. 2-3 minutes after stopping the engine,
check that the oil level is at the upper
level mark on the oil filler cap/dipstick
with the vehicle upright on firm, level
ground. Make sure there are no oil
leaks.
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