Suzuki GSF1250 Service Manual

ABS: 4E-4
Hydraulic Unit (HU) Description
B718H14501003
The hydraulic unit operates the solenoid valves based upon the signal which is output from the ABS control unit. The
brake fluid pressure is then adjusted accordingly. The hydraulic unit controls the front and rear brake systems
individually by operating separate components for the front and the rear, except for the pump drive motor, which is
shared by both systems.
Rear brake
light switch
Rear wheel
speed sensor
Front wheel
speed sensor
Rear system
Front system
ABS indicator light
Front brake
light switch
One-way
valve
One-way
valve
Damper
Reservoir
Reservoir
Solenoid
valve OUT
Solenoid
valve OUT
Solenoid
valve IN
Solenoid
valve IN
Motor
Rear brake
caliper
Front brake
caliper
Front brake lever/
master cylinder
ABS control unit
HU
M
Rear brake pedal/
master cylinder
I718H1450010-01

Suzuki GSF1250 Specifications

General

Displacement	1255 cc
Bore x Stroke	79.0 mm x 64.0 mm
Compression Ratio	10.5:1
Fuel System	Fuel injection
Transmission	6-speed, constant mesh
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Front Brakes	Dual hydraulic disc
Rear Brakes	Single hydraulic disc
Front Tire	120/70ZR17M/C (58W), tubeless
Rear Tire	180/55ZR17M/C (73W), tubeless
Overall Length	2130 mm
Overall Width	790 mm
Seat Height	805 mm
Wheelbase	1485 mm
Fuel Tank Capacity	19.0 L
Starter	Electric
Final Drive	Chain
Ignition	Electronic ignition (transistorized)
Engine Type	4-stroke, liquid-cooled, DOHC
Ground Clearance	135 mm