Honda CRF450R 2009 Owner's Manual & Competition Handbook page 94

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 90).
Worn brake pads should be replaced. If the pads
are not worn, have your brake system inspected
for leaks.
If the front brake lever freeplay exceeds 0.8 in
(20 mm), there is probably air in the brake
system and it must be bled. Refer to an official
Honda Service Manual or see your Honda dealer
for brake bleeding.
88
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 90).
Worn brake pads should be replaced. If the pads
are not worn, have your brake system inspected
for leaks.
If the rear brake pedal freeplay exceeds 0.8 in
(20 mm), there is probably air in the brake
system and it must be bled. Refer to an official
Honda Service Manual or see your Honda dealer
for brake bleeding.