Suzuki GSF1250 Service Manual

Engine General Information and Diagnosis: 1A-18
Example of Trouble
Three data; value 1 (current data 1), value 2 (past data 2) and value 3 (past data 3); can be made in comparison by
showing them in the graph. Read the change of value by comparing the current data to the past data that have been
saved under the same condition, then you may determine how changes have occurred with the passing of time and
identify what problem is currently occurring.
NOTE
With DTC not output, if the value of engine coolant temperature is found to be lower than the data
saved previously, the possible cause may probably lie in a sensor circuit opened, ground circuit
opened or influence of internal resistance value changes, etc.
DTC Table
B718H11104002
Unstable idling speed
No. DTC output
Abnormal curve of graph
Abnormal value of engine coolant temperature
I718H1110153-03
Code Malfunction Part Remarks
C00 None No defective part
C12 (P0335)
)(Page 1A-25)
Crankshaft position sensor (CKPS) Pick-up coil signal, signal generator
C13 (P0105-H/L)
)(Page 1A-28)
Intake air pressure sensor No.1 (IAPS)
C14 (P0120-H/L)
)(Page 1A-37)
Throttle position sensor (TPS)
C15 (P0115-H/L)
)(Page 1A-45)
Engine coolant temperature sensor (ECTS)
C17 (P1750/-H/L)
)(Page 1A-52)
Intake air pressure sensor No.2 (IAPS)
C21(P0110-H/L)
)(Page 1A-60)
Intake air temperature sensor (IATS)
C23 (P1651-H/L)
)(Page 1A-67)
Tip-over sensor (TOS)
C24 (P0351)
)(Page 1A-73)
Ignition signal #1 (IG coil #1) For #1 cylinder
C25 (P0352)
)(Page 1A-73)
Ignition signal #2 (IG coil #2) For #2 cylinder

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