Suzuki GSF650 Service Manual

Table of Contents 1- i
1
Section 1
CONTENTS
Engine
Precautions .................................................1-1
Precautions............................................................. 1-1
Precautions for Engine.......................................... 1-1
Engine General Information and
Diagnosis ................................................. 1A-1
General Description .............................................1A-1
Injection Timing Description ................................ 1A-1
Self-Diagnosis Function (GSF650/S/A/SAK7) .... 1A-2
Self-Diagnosis Function (GSX650FK8)............... 1A-4
Schematic and Routing Diagram........................1A-6
FI System Wiring Diagram .................................. 1A-6
Terminal Alignment of ECM Coupler................... 1A-7
Component Location ...........................................1A-8
FI System Parts Location.................................... 1A-8
Diagnostic Information and Procedures............1A-9
Engine Symptom Diagnosis ................................ 1A-9
Self-Diagnostic Procedures (GSF650/S/A/
SAK7)..............................................................1A-13
Use of SDS Diagnosis Reset Procedures.........1A-15
Show Data When Trouble (DTC) ......................1A-16
SDS Check .......................................................1A-17
DTC Table.........................................................1A-21
Fail-Safe Function Table...................................1A-22
FI System Troubleshooting ............................... 1A-23
Malfunction Code and Defective Condition
Table ............................................................... 1A-24
DTC “C12” (P0335): CKP Sensor Circuit
Malfunction...................................................... 1A-27
DTC “C13” (P0105-H/L): IAP Sensor (#1)
Circuit Malfunction ..........................................1A-30
DTC “C14” (P0120-H/L): TP Sensor Circuit
Malfunction...................................................... 1A-39
DTC “C15” (P0115-H/L): ECT Sensor Circuit
Malfunction...................................................... 1A-47
DTC “C17” (P1750-H/L): IAP Sensor (#2)
Circuit Malfunction ..........................................1A-54
DTC “C21” (P0110-H/L): IAT Sensor Circuit
Malfunction...................................................... 1A-62
DTC “C23” (P1651-H/L): TO Sensor Circuit
Malfunction...................................................... 1A-69
DTC “C24” (P0351), “C25” (P0352), “C26”
(P0353) or “C27” (P0354): Ignition System
Malfunction...................................................... 1A-75
DTC “C28” (P1655): Secondary Throttle
Valve Actuator (STVA) Malfunction.................1A-75
DTC “C29” (P1654-H/L): Secondary Throttle
Position Sensor (STPS) Circuit Malfunction....1A-79
DTC “C31” (P0705): GP Switch Circuit
Malfunction......................................................1A-87
DTC “C32” (P0201), “C33” (P0202), “C34”
(P0203) or “C35” (P0204): Fuel Injector
Circuit Malfunction...........................................1A-89
DTC “C40” (P0505, P0506 or P0507): ISC
Valve Circuit Malfunction.................................1A-93
DTC “C41” (P0230-H/L): FP Relay Circuit
Malfunction......................................................1A-99
DTC “C41” (P2505): ECM Power Input Signal
Malfunction....................................................1A-102
DTC “C42” (P1650): IG Switch Circuit
Malfunction....................................................1A-104
DTC “C44” (P0130/P0135): HO2 Sensor
(HO2S) Circuit Malfunction ...........................1A-104
DTC “C49” (P1656): PAIR Solenoid Valve
Circuit Malfunction.........................................1A-110
DTC “C60” (P0480): Cooling Fan Relay
Circuit Malfunction.........................................1A-114
Self-Diagnostic Procedures (GSX650FK8) .....1A-117
Specifications...................................................1A-118
Service Data....................................................1A-118
Special Tools and Equipment .........................1A-119
Special Tool ....................................................1A-119
Emission Control Devices ...................... 1B-1
Precautions...........................................................1B-1
Precautions for Emission Control Devices ..........1B-1
General Description .............................................1B-1
Fuel Injection System Description.......................1B-1
Crankcase Emission Control System
Description ........................................................1B-2
Exhaust Emission Control System
Description ........................................................1B-3
Noise Emission Control System Description.......1B-3
Schematic and Routing Diagram........................1B-4
PAIR System Hose Routing Diagram .................1B-4
Repair Instructions ..............................................1B-5
Heated Oxygen Sensor (HO2S) Removal and
Installation .........................................................1B-5
Heated Oxygen Sensor (HO2S) Inspection ........1B-6

Suzuki GSF650 Specifications

General

Displacement	656 cc
Bore x Stroke	65.5 mm x 48.7 mm
Compression Ratio	11.5:1
Fuel System	Fuel injection
Ignition	Electronic ignition (transistorized)
Starter	Electric
Transmission	6-speed, constant mesh
Final Drive	Chain
Front Suspension	Telescopic, coil spring, oil damped
Rear Suspension	Link type, coil spring, oil damped
Front Tire	120/70ZR17M/C (58W), tubeless
Rear Tire	160/60ZR17M/C (69W), tubeless
Overall Length	2, 130 mm
Rear Brakes	Disc brake
Fuel Tank Capacity	19.0 L
Wheelbase	1, 470 mm
Seat Height	790 mm
Ground Clearance	135 mm
Engine Type	4-stroke, liquid-cooled, DOHC, 4-cylinder