Honda CRF110F 2019 Owner's Manual page 76

3. Soak the air cleaner element in 4-stroke
motorcycle engine oil (10W-30 MA) until
saturated, then squeeze out the excess
oil.
4. Install the air cleaner element, aligning
its hole (4) with the boss (5) on the air
cleaner housing.
5. Install the air cleaner housing cover and
tighten the bolts to the specified torque:
1.5 N·m (0.2 kgf·m, 1.1 lbf·ft)
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