Suzuki GSF1250 Service Manual

Brake Control System and Diagnosis: 4A-14
Front Brake Master Cylinder Components
B718H14106011
Front Brake Master Cylinder Assembly Removal
and Installation
B718H14106012
Removal
1) Drain brake fluid. Refer to “Brake Fluid Replacement
(Page 4A-10)”.
2) Disconnect the front brake light switch lead coupler
(1).
3) Place a rag underneath the brake hose union bolt (2)
on the master cylinder to catch any spilt brake fluid.
4) Remove the brake hose union bolt (2) and
disconnect the brake hose.
5) Remove the right rear view mirror. (GSF1250/A)
6) Remove the master cylinder assembly (3).
1
2
3
(a)
6
[B]
[A]
5
(b)
FWD
FWD
7
(c)
8
(c)
9
4
I718H1410070-01
1. Reservoir cap 7. Brake lever : 10 N⋅m (1.0 kgf-m, 7.0 lb-ft)
2. Plate 8. Brake lever pivot bolt : 6.0 N⋅m (0.6 kgf-m, 4.5 lb-ft)
3. Diaphragm 9. Brake lever pivot bolt lock-nut : Apply brake fluid.
4. Master cylinder [A]: For GSF1250/A : Apply silicone grease.
5. Piston/Cup set [B]: For GSF1250S/SA : Do not reuse.
6. Brake hose union bolt : 23 N⋅m (2.3 kgf-m, 16.5 lb-ft)
2
1
3
I718H1410048-04

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