Suzuki GSF1250 Service Manual

1I-6 Starting System:
Starter Motor Inspection
B718H11906004
Refer to “Starter Motor Disassembly and Assembly
(Page 1I-5)”.
Carbon Brush
Inspect the carbon brushes for abnormal wear, cracks or
smoothness in the brush holder.
If either carbon brush is defective, replace the housing
end assembly (outside) with a new one.
Measure the length “a” of the carbon brushes using a
vernier calipers. If the measurement is less then the
service limit, replace the housing end assembly (outside)
with a new one.
Brush length “a”
Service limit: 6.5 mm (0.26 in)
Special tool
: 09900–20102 (Vernier calipers (1/20 mm, 200
mm))
Commutator
Inspect the commutator for discoloration, abnormal wear
or undercut “A”.
If the commutator is abnormally worn, replace the
armature.
If the commutator surface is discolored, polish it with
#400 sandpaper and wipe it using a clean, dry cloth.
If there is no undercut, scrape out the insulator (1) with a
saw blade.
Armature Coil
Measure for continuity between each segment. Measure
for continuity between each segment and the armature
shaft.
If there is no continuity between the segments or there is
continuity between the segments and shaft, replace the
armature with a new one.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
Tester knob indication
Continuity set ( )
Bearing
Check the bearing of housing end for damage.
If any damage is found, replace the housing end.
Oil Seal
Check the seal lip for damage.
If any damage is found, replace the housing end
(Inside).
“a”
I718H1190013-01
“A”
1
I718H1190014-02
?
I718H1190015-01
I718H1190016-01
I718H1190018-01

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