Yamaha YP250A 1999 Supplementary Service Manual page 14

To rear brake master cylinder
1
Silencer chamber
2
Hydraulic pump
3
Electric motor
4
Buffer chamber
5
ABS OUTLINE
3. Hydraulic unit
Hydraulic unit is composed of two pieces of hy-
draulic control valve (solenoid valve, flow control
valve), buffer chamber, pump and silencer cham-
ber, and one motor. It adjusts the front/rear wheel
brake fluid pressure to control the wheel rotation
condition according to the signal sent from the
electronic control unit.
Hydraulic control valve
6
To front brake master cylinder
7
To the rear brake caliper
8
To the electronic control unit
9
To the front brake caliper
10
6
GEN
INFO