Yamaha 2007 FZ6-NA Service Manual page 31

1. Brake master cylinder
2. Brake light switch
3. ABS motor
4. Hydraulic pump
5. Buffer chamber
6. Flow control valve
7. Port A
8. Spool
9. Port B
10.Orifice
2.Pressurized state
Port D "11" is closed by the "pressurization" signal transmitted from the ABS ECU. Before this
occurs, the spool of the flow control valve has compressed the return spring and closed port B "9".
Brake fluid that has entered through port A "7" is further restricted by the orifice "10" and the brake
fluid is sent to the brake calipers via port A "7" and port C "13". At this time, the brake is pressur-
ized at a constant speed regardless of the brake fluid pressure level since restriction of port A "7"
changes so that a constant pressure difference is maintained between chamber A "20"and cham-
ber B "21" of the flow control valve.
11.Port D
12.Solenoid valve
13.Port C
14.Brake caliper
15.ABS ECU
16.ABS warning light
17.Brake fluid pressure
18.Time
19.Repressurizing
1-22
FEATURES