Suzuki GSF1250 Service Manual

Engine Mechanical: 1D-39
Cam Chain Tension Adjuster Inspection
B718H11406012
The cam chain tension adjuster is maintained at the
proper tension by an automatically adjusted.
1) Remove the cam chain tension adjuster. Refer to
“Engine Top Side Disassembly (Page 1D-24)”.
2) Check that the push rod slides smoothly when
releasing stopper (1). If it does not slide smoothly,
replace the cam chain tension adjuster with a new
one.
3) Install the cam chain tension adjuster. Refer to
“Engine Top Side Assembly (Page 1D-28)”.
Cam Chain Guide Removal and Installation
B718H11406013
Removal
1) Remove the cylinder head cover. Refer to “Engine
Top Side Disassembly (Page 1D-24)”.
2) Remove the cam chain No.2 guide (1) from the
cylinder head cover.
3) Remove the cylinder head. Refer to “Engine Top
Side Disassembly (Page 1D-24)”.
4) Remove the cam chain No.1 guide (2).
Installation
Install the cam chain guides in the reverse order of
removal.
Cam Chain Guide Inspection
B718H11406014
Inspect the cam chain guide in the following procedures:
1) Remove the cam chain guides. Refer to “Cam Chain
Guide Removal and Installation (Page 1D-39)”.
2) Check the contacting surface of the cam chain
guide. If it is worn or damaged, replace it with a new
one.
3) Install the cam chain guides. Refer to “Cam Chain
Guide Removal and Installation (Page 1D-39)”.
1
I718H1140091-01
1
I718H1140092-01
2
I718H1140056-02
I718H1140095-01

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