Suzuki GSF650 Service Manual

Engine Mechanical: 1D-73
2) Check the corresponding crankshaft journal O.D.
codes ([A], [B] or [C]) “B”, which are stamped on the
crankshaft.
3) Measure the crankshaft O.D. with the special tool. If
any of the measurements are out of specification,
replace the crankshaft.
Crankshaft journal O.D. specification
Special tool
(A): 09900–20202 (Micrometer (1/100 mm,
25 – 50 mm))
4) Select the specified bearings from the bearing
selection table.
Bearing selection table
Bearing thickness specification
Crankshaft Thrust Clearance Inspection and
Selection
B817H21406041
Refer to “Engine Bottom Side Disassembly (Page 1D-
51)”.
Refer to “Engine Bottom Side Assembly (Page 1D-58)”.
Inspection
1) With the crankshaft’s right-side and left-side thrust
bearings inserted into the upper crankcase.
Code “B” O.D. specification
A
33.992 – 34.000 mm
(1.3383 – 1.3386 in)
B
33.984 – 33.992 mm
(1.3380 – 1.3383 in)
C
33.976 – 33.984 mm
(1.3367 – 1.3380 in)
“B”
I717H1140203-02
(A)
I717H1140204-01
Color “C” (Part No.) Thickness
Green
(12229-34E00-0A0)
1.488 – 1.492 mm
(0.0586 – 0.0587 in)
Black
(12229-34E00-0B0)
1.492 – 1.496 mm
(0.0587 – 0.0589 in)
Brown
(12229-34E00-0C0)
1.496 – 1.500 mm
(0.0589 – 0.0591 in)
Yellow
(12229-34E00-0D0)
1.500 – 1.504 mm
(0.0591 – 0.0592 in)
“C”: Color code
Crankcase
I.D. “A”
Crankshaft O.D. “B”
Code
A
B
A
Green
Black
B
Black
Brown
C
Brown
Yellow
I718H1140302-02
“C”
I718H1140303-01

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