Yamaha 2008 Fazer FZ1-N Service Manual page 147

EWA13110
WARNING
After bleeding the hydraulic brake system,
check the brake operation.
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Bleeding the ABS brake
EWA14010
WARNING
Bleed the ABS whenever:
• the system is disassembled.
• a brake hose is loosened, disconnected
or replaced.
• the brake fluid lever is very low.
• brake operation is faulty.
NOTE:
• Be careful not to spill any brake fluid or allow
the brake master cylinder reservoir or brake
fluid reservoir to overflow.
• When bleeding the ABS, make sure there is
always enough brake fluid before applying
the brake. Ignoring this precaution could
allow air to enter the ABS, considerably
lengthening the bleeding procedure.
• If bleeding is difficult, it may be necessary to
let the brake fluid settle for a few hours.
• Repeat the bleeding procedure when the tiny
bubbles in the hose have disappeared.
1. Bleed:
• ABS
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a. Fill the brake fluid reservoir to the proper
level with the recommended brake fluid.
b. Install the diaphragm (brake master cylin-
der reservoir or brake fluid reservoir).
c. Connect a clear plastic hose "1" tightly to
the bleed screw "2".
A. Front
B. Rear
d. Place the other end of the hose into a con-
tainer.
e. Slowly apply the brake several times.
f. Fully squeeze the brake lever or fully
depress the brake pedal and hold it in posi-
tion.
g. Loosen the bleed screw.
NOTE:
Loosening the bleed screw will release the
pressure and cause the brake lever to contact
the throttle grip or the brake pedal to fully
extend.
h. Tighten the bleed screw, and then release
the brake lever or brake pedal.
i. Repeat steps (e) to (h) until all of the air
bubbles have disappeared from the brake
fluid in the plastic hose.
j. Check the operation of the hydraulic unit.
Refer to "HYDRAULIC UNIT OPERATION
TEST" on page 4-53.
ECA14780
CAUTION:
Make sure that the main switch is set to
"OFF" before checking the operation of the
hydraulic unit.
k. After operating the ABS, repeat steps (e) to
(i), and then fill the primary circuit with the
recommended brake fluid.
l. Tighten the bleed screw to the specified
torque.
Brake caliper bleed screw
5 Nm (0.5 m·kg, 3.6 ft·lb)
m. Fill the brake master cylinder reservoir or
brake fluid reservoir to the proper level with
the recommended brake fluid.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-23.
3-26
CHASSIS