Air Bleeding - Yamaha YX600S Service Manual

ICHAS1~1_F_R_O_N_T_B_R_A_K_E
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5-21
AIR BLEEDING
WARNING:
Bleed the brake system if:
•The system has been disassembled.
•A brake hose has been loosened or remov-
ed.
•The brake fluid is very low.
•The brake operation is faulty.
A dangerous loss of braking performance
may occur if the brake system is not properly
bled.
1. Air bleeding
Air bleeding steps:
a. Add proper brake fluid to the reservoir.
b. Install diaphragm.
Be careful not to spill any fluid or allow the
reservoir to over flow.
c. Connect the clear plastic tube (4.5 mm, 3/16
in inside dia.) tightly to the caliper bleed
screw
G).
d. Place the other end of the tube into a
container.
e. Slowly apply the brake lever several times.
f. Pull the lever in. Hold the lever in position.
g. Loosen the bleed screw and allow the lever
to travel towards its limit.
h. Tighten the bleed screw when the lever limit
has been reached; then release the lever.
i. Repeat steps (e) to (h) until of the air bubles
have been removed from the system.
NOTE:
~~~~~~~~~~~~~-
If bleeding is difficult, it may be necessary to let
the brake fluid system stabilize for a few hours.
Repeat the bleeding procedure when the tiny bub-
bles in system have disappeared.
2. Tighten:
•Bleed screw
•Screws (Master cylinder cap)
Bleed Screw:
6 Nm (0.6 m•kg, 4.3 ft•lb)
Screws (Master cylinder cap):
2 Nm (0.2 m•kg, 1.4 ft•lb)