Suzuki GSF1250 Service Manual

1J-4 Charging System:
2) Measure the resistance between the three lead
wires.
If the resistance is out of specified value, replace the
stator with a new one. Also, check that the generator
core is insulated properly.
NOTE
When making this test, be sure that the
battery is in fully charged condition.
Special tool
: 09900–25008 (Multi-circuit tester set)
Tester knob indication
Resistance (Ω)
Generator coil resistance
0.2 – 0.8 Ω (B – B)
∞ Ω (B – Ground)
3) Connect the generator coupler.
No-load Performance
1) Disconnect the generator coupler (1).
2) Start the engine and keep it running at 5 000 r/min.
3) Using the multi-circuit tester, measure the voltage
between three lead wires.
If the tester reads under the specified value, replace
the generator with a new one.
Special tool
: 09900–25008 (Multi-circuit tester set)
Tester knob indication
Voltage (~)
Generator no-load performance (When engine is
cold)
60 V (AC) and more at 5 000 r/min
Generator Removal and Installation
B718H11A06004
Removal
1) Disconnect the battery (–) lead wire. Refer to
“Battery Removal and Installation (Page 1J-12)”.
2) Drain engine oil. Refer to “Engine Oil and Filter
Replacement in Section 0B (Page 0B-10)”.
3) Remove the engine sprocket outer cover (1).
4) Disconnect the CKP sensor coupler (2) and
generator coupler (3).
B
B
B
I718H11A0005-02
1
I718H11A0030-01
B
B
B
I718H11A0006-02
1
I718H11A0007-01
2
3
I718H11A0031-01

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