Honda CB300R 2019 Manual page 59

Maintenance Fundamentals
Crankcase Breather
Service more frequently when riding in rain, at
full throttle, or after the motorcycle is washed or
overturned. Service if the deposit level can be
seen in the transparent section of the drain
tube.
If the drain tube overflows, the air filter may
become contaminated with engine oil causing
poor engine performance.
Tyres (Inspecting/Replacing)
#
Checking the Air Pressure
Visually inspect your tyres and use an air
pressure gauge to measure the air pressure at
least once a month or any time you think the
tyres look low. Always check air pressure when
your tyres are cold.
56
P. 90
2
#
Inspecting for Damage
Inspect the tyres for
cuts, slits, or cracks that
exposes fabric or
cords, or nails or other
foreign objects
embedded in the side
of the tyre or the tread.
Also inspect for any unusual bumps or bulges in
the side walls of the tyres.
# Inspecting for Abnormal Wear
Inspect the tyres for
signs of abnormal wear
on the contact surface.