Suzuki GSF650A Service Manual page 173

Check 4
1) Click the button (6) and increase the "Spec" (2) to 1 400 rpm.
2) Check that the "Desired idle speed" (3) is approx. 1 400 rpm.
3) Check that the "Engine speed" (7) is close to 1 400 rpm.
NOTE
Be careful not to increase the "Spec" to 1 700 rpm, or the "Engine speed" may reach the upper limit.
If the ISC valve does not function properly, replace the ISC valve or inspect the ISC valve. Refer to "Throttle Body
Disassembly and Assembly in Section 1D (Page 1D-11)".
Engine General Information and Diagnosis:
6
2
I718H1110219-01
7
3
I717H1110032-01
1A-98