Suzuki GSF650S Service Manual page 268

Step 6
1) Measure the signal generator peak voltage and its resistance. (!6-33 to -35)
NOTE:
The signal generator peak voltage inspection is applicable only with the multi-circuit tester and peak volt
adaptor.
Is the peak voltage and resistance OK?
• Faulty ignitor
YES
• Poor connection of ignition couplers
NO Faulty signal generator
ELECTRICAL SYSTEM 6-31