Suzuki GSF1250 Service Manual

1K-6 Exhaust System:
Exhaust System Inspection
B718H11B06003
Inspect the exhaust pipe connection and muffler
connection for exhaust gas leakage and mounting
condition. If any defect is found, replace the exhaust
pipe assembly or muffler with a new one.
Check the exhaust pipe bolts, muffler connecting bolts
and muffler mounting nut are tightened to their specified
torque.
Tightening torque
Exhaust pipe bolt (a): 23 N·m (2.3 kgf-m, 16.5 lb-ft)
Exhaust pipe mounting bolt (b): 23 N·m (2.3 kgf-m,
16.5 lb-ft)
Muffler connecting bolt (c): 23 N·m (2.3 kgf-m, 16.5
lb-ft)
Muffler mounting nut (d): 26 N·m (2.6 kgf-m, 19.0 lb-
ft)
Specifications
Tightening Torque Specifications
B718H11B07001
NOTE
The specified tightening torque is also described in the following.
“Exhaust System Construction (Page 1K-2)”
Reference:
For the tightening torque of fastener not specified in this section, refer to “Tightening Torque Specifications in Section
0C (Page 0C-7)”.
Special Tools and Equipment
Recommended Service Material
B718H11B08001
(d)
(c)
(b)
(a)
(a)
I718H11B0013-02
Fastening part
Tightening torque
Note
N⋅mkgf-mlb-ft
HO2 sensor 25 2.5 18.0 )(Page 1K-4)
Exhaust pipe bolt
23 2.3 16.5
)(Page 1K-5) /
)(Page 1K-6)
Exhaust pipe mounting bolt
23 2.3 16.5
)(Page 1K-5) /
)(Page 1K-6)
Muffler mounting nut
26 2.6 19.0
)(Page 1K-5) /
)(Page 1K-6)
Muffler connecting bolt
23 2.3 16.5
)(Page 1K-5) /
)(Page 1K-6)
Material SUZUKI recommended product or Specification Note
Exhaust gas sealer PERMATEX 1372 (commercially
available)
— )(Page 1K-4)

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