Honda CRF150R 2020 Owner's Manual & Competition Handbook page 82

Brakes
Fluid Level Inspection
Front Brake Fluid Level Check
(1)
(1) LWR mark
With the motorcycle in an upright position, check
the fluid level.
It should be above the LWR mark (1). If the level
is at or below the LWR mark, check the brake pads
for wear (page 78).
Worn brake pads should be replaced. If the pads
are not worn, have your brake system inspected
for leaks.
If the brake lever freeplay exceeds 0.8 in (20 mm),
there is probably air in the brake system and it must
be bled. Refer to the Honda Service Manual or see
your dealer for brake bleeding.
76
Servicing Your Honda
Rear Brake Fluid Level Check
(1)
(1) LOWER mark
With the motorcycle in an upright position, check
the fluid level.
It should be above the LOWER mark (1). If the
level is at or below the LOWER mark, check the
brake pads for wear (page 78).
Worn brake pads should be replaced. If the pads
are not worn, have your brake system inspected for
leaks.
If the brake pedal freeplay exceeds 1.2 in (30 mm),
there is probably air in the brake system and it must
be bled. Refer to the Honda Service Manual or see
your dealer for brake bleeding.
Other Checks:
Make sure there are no fluid leaks.
Check for deterioration or cracks in the hoses and
fittings.