Suzuki GSF1250 Service Manual

Engine Lubrication System: 1E-13
Oil Pump Inspection
B718H11506014
Inspect the oil pump in the following procedures:
1) Remove the oil pump. Refer to “Oil Pump Removal
and Installation (Page 1E-11)”.
2) Rotate the oil pump by hand and check that it moves
smoothly. If it does not move smoothly, replace the
oil pump assembly.
CAUTION
!
Do not attempt to disassemble the oil pump
assembly.
The oil pump is available only as an
assembly.
3) Install the oil pump. Refer to “Oil Pump Removal and
Installation (Page 1E-11)”.
Specifications
Service Data
B718H11507001
Oil Pump
Oil
Tightening Torque Specifications
B718H11507002
Reference:
For the tightening torque of fastener not specified in this section, refer to “Tightening Torque Specifications in Section
0C (Page 0C-7)”.
I718H1150063-01
Item Standard Limit
Oil pressure (at 60 °C, 140 °F)
100 – 400 kPa
(1.0 – 4.0 kgf/cm
2
, 14 – 57 psi)
at 3 000 r/min
—
Item Specification Note
Engine oil type SAE 10W-40, API SF/SG or SH/SJ with JASO MA
Engine oil capacity
Change 3 000 ml (3.2/2.6 US/lmp qt)
Filter change 3 500 ml (3.7/3.1 US/lmp qt)
Overhaul 3 700 ml (3.9/3.3 US/lmp qt)
Fastening part
Tightening torque
Note
N⋅mkgf-mlb-ft
Main Oil gallery plug (M16) 35 3.5 25.5 )(Page 1E-4)
Oil gallery plug (M12) 15 1.5 11.0 )(Page 1E-5)
Oil cooler union bolt 70 7.0 50.5 )(Page 1E-7)
Oil pressure switch 14 1.4 10.0 )(Page 1E-8)
Oil pressure switch lead wire bolt 1.5 0.15 1.1 )(Page 1E-8)
Piston cooling oil jet bolt 10 1.0 7.0 )(Page 1E-10)
Oil gallery jet 22 2.2 16.0 )(Page 1E-10)
Oil pump mounting bolt 10 1.0 7.0 )(Page 1E-12)

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