Suzuki GSF650 Service Manual

1A-7 Engine General Information and Diagnosis:
Terminal Alignment of ECM Coupler
B817H21102002
I718H1110004-02
TERMINAL NO. CIRCUIT TERMINAL NO. CIRCUIT
1 STVA signal (STVA, 2A) 31 CKP sensor signal (CKP-)
2 STVA signal (STVA, 1A) 32 Serial data for self-diagnosis
3 — 33 Power source for fuel injector (VM)
4 34 ECM ground (E1)
5 35 ISC signal (ISC, 2A)
6 Serial data for speedometer 36 ISC signal (ISC, 1A)
737—
8 TP sensor signal (TP) 38 Fuel pump relay (FP Relay)
9 IAP sensor signal #2 (IAP, 2) 39 PAIR control solenoid valve (PAIR)
10 ECT sensor signal (ECT) 40 HO2 sensor heater (HO2, H)
11 Power source for sensors (Vcc) 41 Fuel injector #4 (#4, 1)
12 HO2 sensor signal (HO2S) 42 Fuel injector #3 (#3, 1)
13 — 43 Fuel injector #2 (#2, 1)
14 CKP sensor signal (CKP+) 44 Fuel injector #1 (#1, 1)
15 Cooling fan relay (FAR) 45 Ignition coil #3
16 Power source for back-up 46 Ignition coil #2
17 Power source 47 Ignition coil #1
18 STVA signal (STVA, 2B) 48 ISC signal (ISC, 2B)
19 STVA signal (STVA, 1B) 49 ISC signal (ISC, 1B)
20 STP sensor (STP) 50 —
21 Ignition switch signal 51 —
22 TO sensor signal (TOS) 52 —
23 GP sensor signal (GP) 53 Neutral switch
24 54 Starter relay
25 55 Clutch position switch
26 IAP sensor signal #1 (IAP, 1) 56 —
27 IAT sensor signal (IAT) 57 —
28 58 Ground
29 Sensors ground (E2) 59 Ground for ignition system
30 Mode select switch 60 Ignition coil #4

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